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       #Post#: 80972--------------------------------------------------
       Rivercourt Road: The TMO
   DIR By: Bustagate
       Date: July 14, 2025, 3:09 pm
       ---------------------------------------------------------
       Overview
       This is the first of three posts which analyse the TMO for
       Rivercourt Road, Hammersmith and Fulham. It sets the scene for
       detailed analysis of the two sets of restrictions which the TMO
       imposes.
       TMO 2037 of 18 September 2024 attempted to lift the existing
       restriction in the Consolidated TMO 1878:
       - one-way northbound for all vehicles (including cycles) from
       Great West Road to King Street
       and instead impose two separate restrictions:
       - one-way northbound for all vehicles (including cycles) from
       Great West Road to the start of two-way Rivercourt Road;
       - only buses, taxis, cycles and H&F permit holders permitted to
       pass from Great West Road to two-way Rivercourt Road
       The intention was that any vehicle could enter Rivercourt Road
       from King Street and pass southbound, turn round north of the
       junction with Great West Road and then return northbound to King
       Street, exiting there.
       The lifting of the existing restriction and the imposition of
       the first of the new restrictions was the subject of paragraph 6
       of the TMO and its Schedule. It sought to define a new one-way
       south-to-north restriction which replaced the old one.
       Paragraphs 4 and 5 of the TMO were intended to impose the
       separate restriction on which vehicles can turn off Great West
       Road onto Rivercourt Road. There are some issues with these
       paragraphs, but they may have the effect which H&F intended.
       They are represented by the "flying motorcycle" sign with its
       Except plate (note that the one-way sign beneath this is part of
       the paragraph 6 restriction, not paragraphs 4 and 5).
       The image below shows the signage as it was on 7 July 2025 (it
       has changed twice since November 2024):
       [attachimg=1]
       This post comes to the conclusion that the new one-way
       south-to-north restriction specified in the Schedule does not
       exist. While this implies that the one-way signs northbound, the
       Give Way road markings and the No Entry signs southbound should
       not be there, the restriction on which vehicles can turn into
       Rivercourt Road may, in principle, be enforceable.
       There are, of course, other issues which affect whether a
       contravention occurs when a motor vehicle without a permit turns
       left from Great West Road into Rivercourt Road. Those include
       whether there is adequate signage. H&F have recently reduced the
       sign clutter on Rivercourt Road, but the signage on Great West
       Road remains variable message signs. This post is not concerned
       with signage issues.
       One highly significant issue for the TMO is whether Hammersmith
       and Fulham Council acted lawfully in issuing it. Section 121B of
       Road Traffic Regulation Act 1984 requires a local authority
       which is planning to make a change to one of its roads which
       could have an effect on one of TfL's roads to give TfL notice
       before making the change and obey TfL's subsequent instructions.
       TfL have now confirmed that the Council did not do this.
       Moreover, H&F also erased the edge-of-carriageway road markings
       on TfL's Great West Road and painted their own road markings on
       TfL's exit slip road. This will be the subject of a further post
       on this thread.
       Source Documents
       The primary source documents are:
       - Rivercourt Road TMO 2037 of 18th September 2024
  HTML https://www.whatdotheyknow.com/request/freedom_of_information_request_r_419/response/2866782/attach/3/2%20Rivercourt%20Road%20TMO.pdf
       - Consolidated TMO 1878 of 24th April 2023
  HTML https://www.whatdotheyknow.com/request/rivercourt_road_experimental_tmo/response/3055381/attach/2/1878%20LBHF%20MTC%20Order.pdf
       - H&F's plan of the junction between A4 and Rivercourt Road
  HTML https://www.whatdotheyknow.com/request/rivercourt_road_experimental_tmo/response/3055381/attach/3/Rivercourt%20Road%20A4%20Junction%20Layout%20Plan.pdf<br
       />showing the signage after January 2025 but before the changes
       at
       the end of June 2025
       Other source material has come as answers to FoI requests:
       - H&F: Rivercourt Road Experimental TMO
  HTML https://www.whatdotheyknow.com/request/rivercourt_road_experimental_tmo<br
       />
       - TfL: Junction of Great West Road with Rivercourt Road
  HTML https://www.whatdotheyknow.com/request/junction_of_great_west_road_with
       Annotated Plan
       TMO 2037 refers to various entities, notably
       - junction [of Rivercourt Road] with Great West Road
       - the southern building wall of No. 17 Rivercourt Road
       The plan below is taken from Hammersmith and Fulham's January
       2025 plan of the signage at the junction. This is the second
       iteration of the signage. H&F have resisted supplying plans
       issued to the line painters in November 2024 for the original
       signage (which can be seen in this image
  HTML https://i0.wp.com/www.hammersmithsociety.org.uk/wp-content/uploads/2024/11/LTN-signage-Rivercourt-Road.jpg)<br
       />from Hammersmith Society's report of 24 November 2024
  HTML https://www.hammersmithsociety.org.uk/rivercourt-road-a-new-two-way-ltn/.<br
       />The main change is that the Give Way lines have been moved
       north
       about 1.2 meters, as can be seen in the image at the top of this
       post.
       On the plan have been drawn various lines which are referenced
       in the discussion in subsequent posts. There is a key at bottom
       right.
       [attachimg=2]
       The conventions of this plan are as follows:
       land shaded:
       - pale blue: TfL's highway land
       - pale red: H&F's highway land
       - grey: crossover or dropped kerb
       - striped blue-grey: tactile paving
       - white: non-highway land (the land immediately to the north of
       the pale blue land is laid to flowerbeds or is otherwise
       decorative and so is not highway land; its ownership &#9472; TfL
       or H&F &#9472; has not been established)
       red lines and text represent proposed changes:
       - thick lines adjacent to "SP" are upright traffic signs on a
       sign post
       - other thick lines are white lines 150mm wide
       - thinner lines near kerb are yellow lines
       - other text and graphics on road are road markings in white
       numbers in circles (red for new; black for existing) represent
       diagram numbers in the Traffic Signs Regulations for upright
       traffic signs. The most important are:
       - 616: No Entry
       - 619: No Motor Vehicles aka "flying motorcycle"
       - 652: One Way Traffic
       - 670: Speed limit
       thin lines with arrows at each end and numbers to 1 decimal
       place are measured distances in meters
       capital letters
       - B: bollard
       - LC: lamp column (with number)
       - SP: signpost
       [attachment deleted by admin]
       #Post#: 80980--------------------------------------------------
       Re: Rivercourt Road: The TMO
   DIR By: Bustagate
       Date: July 14, 2025, 3:28 pm
       ---------------------------------------------------------
       South-to-North Restriction
       TMO 1878
       The Consolidated TMO 1878 of 24 April 2023 specified restriction
       161 as follows:
       --- Quote ---
       >
       > No person shall cause or permit any vehicle to proceed in a
       road or length of road, as the case may be, specified in column
       2 of part B of Schedule 2 in any direction other than that
       specified in relation thereto in column 3 of part B of that
       Schedule at the times or on the days or both specified in
       relation thereto, in such circumstances as they are specified,
       in column 4 of part B of that Schedule, other than a vehicle
       referred to in relation thereto in column 5 of part B of that
       Schedule at the times or on the days or both specified in
       relation thereto, in such circumstances as they are specified,
       in column 6 of part B of that Schedule.
       >
       --- End Quote ---
       The relevant columns in Schedule 2 Part B for Rivercourt Road
       were:
       --- Quote ---
       >
       >
       >
       - Item: 161
       >
       - Length of Road: Rivercourt Road, between Great West Road and
       King Street
       >
       - Direction of travel: south to north
       >
       - Days / Times: At any time
       >
       - Exempted vehicles: -
       >
       - Days / Times of exemption: -
       >
       >
       --- End Quote ---
       This TMO therefore imposed a one-way south-to-north restriction
       on all vehicles on that length of Rivercourt Road between Great
       West Road and King Street.
       TMO 2037
       Paragraph 6 of TMO 2037 of 18 September 2024 specified:
       --- Quote ---
       >
       > Without prejudice to the validity of anything done or to any
       liability incurred in respect of any act or omission before the
       coming into force of this Order, the Hammersmith and Fulham
       (Prescribed Routes) (Consolidation) Traffic Order 2023 shall
       have effect as though Item no. 161 to Schedule 2, Part B of that
       Order was replaced by the item in Schedule to this order.
       >
       --- End Quote ---
       The relevant column entries were as before, except that column
       2, Length of Road became:
       --- Quote ---
       >
       > 2. Length of Road: Rivercourt Road, between Great West Road
       and a point and a point 8.30 meters south of the southern
       building wall of No. 17 Rivercourt Road.
       >
       --- End Quote ---
       In other words, the section of Rivercourt Road which was one-way
       northbound for all vehicles started at the same place as before
       but (disregarding the repetition of "and a point") now ended not
       at King Street but at
       --- Quote ---
       >
       > a point 8.30 meters south of the southern building wall of No.
       17 Rivercourt Road.
       >
       --- End Quote ---
       A Point 8.30 Meters South of the Southern Building Wall of No.
       17 Rivercourt Road
       It is common for the definition of the start or end of parking
       lines or bus lanes to be defined by reference to boundaries
       between properties which abut the highway. It is less common to
       use such a datum for the entire width of a carriageway.
       The reference to "building wall" is non-standard; "boundary
       wall" or "boundary" is typical. As walls have finite thickness,
       the face of the wall may be specified.
       Hammersmith and Fulham have provided their own interpretation of
       "a point 8.30 meters south of the southern building wall of No.
       17 Rivercourt Road". In FoI request 16918890
  HTML https://www.whatdotheyknow.com/request/rivercourt_road_experimental_tmo,<br
       />they answered:
       --- Quote ---
       >
       > The specified location 8.30 meters south of the southern
       building wall of No. 17 Rivercourt Road is where the boundary
       lines of the A4 land and Rivercourt Road land meet.
       >
       --- End Quote ---
       The annotations in orange on the plan in the preceding post show
       a line running E &#9472; W where the footway of Rivercourt Road
       widens to the south of No. 17. Another orange line is shown 8.30
       meters south of this, which does indeed meet the boundary
       between TfL's Great West Road and H&F's Rivercourt Road at the
       eastern edge of the eastern footway on Rivercourt Road. We can
       therefore take this point as the point specified in the TMO.
       There is a mistake in the Ordnance Survey plan (which I have
       reported to Ordnance Survey) relating to what I have shown in
       orange as the "Southern building wall of No. 17 Rivercourt
       Road". It is that the plan shows this line running E &#9472; W
       while the rest of the southern boundary of No. 17 Rivercourt
       Road runs approximately 4° N of E &#8722; 4° S of W. However,
       this makes no difference if one uses the easternmost point of
       the "southern building wall" as the datum.
       Start of the South-to-North Restriction
       The Schedule specifies the south-to-north restriction on
       Rivercourt Road as running "from Great West Road...". That means
       that it starts at the boundary where Great West Road meets
       Rivercourt Road. The dark green line on the annotated plan shows
       the boundary between the land shaded pale blue and that shaded
       pale red where it crosses the carriageway of Rivercourt Road.
       This appears to be where H&F consider the south-to-north
       restriction starts.
       On inspection, the dark green line lies to the north of a
       straight line which joins sections of the boundary between the
       pale-blue-shaded land and the white non-highway land towards
       each edge of the plan in the preceding post. This latter line
       has been coloured lime green. It seems more likely that where
       this lime green line crosses the carriageway of Rivercourt Road
       it defines the boundary between Great West Road and the
       Council's Rivercourt Road.
       Below is a section of the annotated plan which zooms in to the
       exit slip road from Great West Road and the various lines which
       could represent the start and end of the south-to-north
       restriction.
       [attachimg=1]
       End of the South-to-North Restriction
       The Schedule specifies the south-to-north restriction as ending
       at "a point 8.30 meters south of the southern building wall of
       No. 17 Rivercourt Road". This point lies on the orange line
       which runs E &#9472; W from the point where the eastern edge of
       the eastern footway of Rivercourt Road meets the edge of the
       combined cycleway/footway of Great West Road. That point lies
       just to the south of the signpost facing west which carried the
       HGV restriction sign (diagram 622.1A) with its plates and which
       still carries a sign with the street name.
       Where a TMO uses a point such as this as a datum for a road
       marking on the carriageway, standard practice is to regard it as
       defining a line across the carriageway perpendicular to the kerb
       at that point. If we start at the back of the eastern footway,
       this results in a line which is parallel to and lies 8.30 meters
       south of the southern boundary of 17 Rivercourt Road. That line
       is shown in violet.
       If we regard the point 8.30 meters south of the southern
       building wall of 17 Rivercourt Road as defining a line running E
       &#9472; W because the southern building wall runs E &#9472; W
       (except that it only does so on Ordnance Survey's mistaken
       cartography), the end of the south-to-north restriction lies
       where the orange line crosses the carriageway.
       Between these two lines across the carriageway, orange and
       violet, other lines could be drawn, e.g. the magenta line which
       runs perpendicular to the kerb starting at the front edge of the
       footway 8.30 meters south of the southern building wall of 17
       Rivercourt Road.
       Another possibility would be to draw a line parallel to the Give
       Way lines starting where the eastern kerb meets the orange line.
       Extent of the South-to-North Restriction
       Each of the lines just described is a possible interpretation of
       what the TMO defines as the end of the south-to-north
       restriction. They all share the property that they lie entirely
       to the south of the lime green line which marks the start of the
       south-to-north restriction.
       It follows that, as the end of the south-to-north restriction
       lies to the south of its start, the restriction has not been
       defined meaningfully. It is therefore unenforceable and has no
       effect.
       The consequence is that there is now no south-to-north
       restriction anywhere between Great West Road and King Street.
       Vehicles can use it in a southerly direction. The No Entry signs
       and Give Way road markings, which have been placed supposedly to
       give effect to the south-to-north restriction in the TMO, have
       been placed in error and should be removed.
       [attachment deleted by admin]
       #Post#: 80989--------------------------------------------------
       Re: Rivercourt Road: The TMO
   DIR By: Bustagate
       Date: July 14, 2025, 3:48 pm
       ---------------------------------------------------------
       Restriction on Vehicle Classes from Great West Road
       TMO 2037
       Paragraphs 4 and 5 of TMO 2037 state:
       --- Quote ---
       >
       > 4. No person shall cause any motor vehicle to proceed in a
       northbound direction on Rivercourt Road past a point at its
       junction with the A4, Great West Road and;
       > 5. The controls specified in article 4 do not apply in respect
       of a vehicle being in any length of the restricted streets –
       > (a) with a valid permit;
       > (b) being a bus, local bus, taxi and pedal cycle; ...
       >
       --- End Quote ---
       Paragraph 4 ends with "and;", which suggests a typo, as with the
       repetition of "and a point" in the Schedule to the TMO.
       Normal practice with TMOs is that if some special restriction
       applies which cannot be defined in the Schedule, it is defined
       in the main body of the TMO but applies to the same length of
       road as that in the Schedule. If that  were so, the word "and"
       would be followed by "a point 8.30 meters south of the southern
       building wall of No. 17 Rivercourt Road." As noted in the
       previous post, this extended form of paragraph 4 does not define
       a south-to-north restriction. If it did (and I surmise that
       whoever drafted the Schedule thought that the junction between
       Great West Road and Rivercourt Road lay at the
       edge-of-carriageway markings on Great West Road), TMO 2037 would
       make complete sense.
       Passing "a point"
       Nonetheless, it is possible that paragraph 4 was intended to
       refer simply to passing a point at the junction of Rivercourt
       Road with Great West Road. We have seen in the preceding post
       that "a point 8.30 meters south of the southern building wall of
       No. 17 Rivercourt Road" refers to a point on the boundary
       between TfL's Great West Road and H&F's Rivercourt Road.  It
       seems likely that this is the point referred to in paragraph 4.
       In races on a track (horses, athletics, motor) there is a
       finishing line, which runs perpendicular to the track. On one
       side of this there may be a finishing post, today with a camera
       which records what passes across the line. It therefore makes
       sense to refer to "passing a point". This occurs when the front
       of the horse, human or motor car crosses the line perpendicular
       to the track which runs through the specified point.
       If "a point" refers to "a point 8.30 meters south of the
       southern building wall of No. 17 Rivercourt Road", the line
       perpendicular to the track passing through this point is the
       magenta or violet line shown on the annotated plan, or some line
       between these. These lines lie wholly across TfL's land.
       Hammersmith and Fulham cannot impose such a restriction on a TfL
       road.
       Relaxation of the Control
       Paragraph 5 states that the controls in paragraph 4 do not apply
       --- Quote ---
       >
       > in respect of a vehicle being in any length of the restricted
       streets
       >
       --- End Quote ---
       That phraseology, especially the words "being in any length of
       the restricted streets", implies that there is some length of
       the restricted street in which the vehicle could be. One of the
       purposes of TMO 2037 was to lift the one-way restriction on
       Rivercourt Road north of the junction with Great West Road.
       There is now nowhere on Rivercourt Road between Great West Road
       and King Street in which the presence of a vehicle going in a
       particular direction at some time of itself contravenes a moving
       traffic restriction. A restriction may apply as a vehicle passes
       "a point 8.30 meters south of the southern building wall of No.
       17 Rivercourt Road", but when a vehicle does so, it is not on
       Rivercourt Road but on the exit from Great West Road (which
       forms part of Great West Road).
       This raises the question of what "restricted street" means. Is
       it a street in which the characteristics of the vehicle together
       with its location and the time and date determine whether the
       vehicle is permitted to be there? Or can it be a street in which
       how the vehicle got there determines whether the vehicle is
       permitted to be there? Could a TMO impose a restriction on those
       entering Rivercourt Road who had passed through Royal Borough of
       Kensington and Chelsea on their way there? These are tricky
       issues which only the courts can settle.
       Conclusions
       The restrictions in paragraphs 4 and 5 may be enforceable.
       Paragraph 4 bars motor vehicles from passing a point which lies
       on the boundary between TfL's highway and H&F's. Because of the
       alignment of the carriageways of Great West Road and Rivercourt
       Road (the angle between them is less than 90°), vehicles pass
       this point when they are on TfL's highway. The restriction is
       therefore extra-territorial but vehicles which pass it do
       subsequenly enter H&F's territory.
       Paragraph 5 seeks to exempt certain vehicles from the
       restrictions of paragraph 4. However, as vehicles can enter and
       be in all parts of Rivercourt Road between Great West Road and
       King Street in either direction at all times, it's not clear
       that this section of Rivercourt Road is a "restricted street":
       the restriction applies to how the vehicle got there rather than
       where it is. This makes it far from certain that the
       extra-territorial restriction is lifted for those classes of
       vehicle specified in paragraph 5.
       In other words, it seems quite possible that all motor vehicles
       which turn left from Great West Road onto Rivercourt Road are
       prohibited from proceeding north along Rivercourt Road. If this
       were so, it would be wholly improper for H&F to turn a blind eye
       to such contraventions by buses, taxis and permit holders while
       issuing PCNs to other motorists. This would render H&F's issuing
       of PCNs ultra vires because they took account of irrelevant
       considerations, i.e. that H&F had intended such motor vehicles
       to be exempt.
       #Post#: 81012--------------------------------------------------
       Re: Rivercourt Road: The TMO
   DIR By: John U.K.
       Date: July 15, 2025, 1:12 am
       ---------------------------------------------------------
       If H&F cannot tell the difference between meters and metres it
       is not surprising they cannot be trusted to draw up a TMO.
       #Post#: 81051--------------------------------------------------
       Re: Rivercourt Road: The TMO
   DIR By: Bustagate
       Date: July 15, 2025, 5:40 am
       ---------------------------------------------------------
       I expect their spell-checker is set to US English.
       #Post#: 81056--------------------------------------------------
       Re: Rivercourt Road: The TMO
   DIR By: John U.K.
       Date: July 15, 2025, 6:12 am
       ---------------------------------------------------------
       --- Quote from: Bustagate link ---
       >
       > I expect their spell-checker is set to US English.
       >
       --- End Quote ---
       Probably, but (tongue-in-cheek) I'd be tempted to ask H&F where
       I could find these meters, and whether they were parking-, gas-
       or electric-. After all, metre, as a unit of linear measurement,
       is defined in English law: meter, as a unit of linear
       measurement, is not, whereas meter as an instrument for
       measuring quantity, may well be.
       #Post#: 81190--------------------------------------------------
       Re: Rivercourt Road: The TMO
   DIR By: Bustagate
       Date: July 16, 2025, 4:21 am
       ---------------------------------------------------------
       Public Notice for TMO 2037
       I've been reading the Public Notice for TMO 2037
  HTML https://publicnoticeportal.uk/notice/planning/66eaa75f706661e7a9ce14d2.<br
       />This isn't the formal TMO
  HTML https://www.whatdotheyknow.com/request/freedom_of_information_request_r_419/response/2866782/attach/3/2%20Rivercourt%20Road%20TMO.pdf,<br
       />but Public Notices can help shed light on TMOs. In this case
       it
       does.
       Curiosities of TMO 2037
       The first curiosity of TMO 2037 is that there is no paragraph 2.
       The next is the apparently incomplete paragraph 4:
       --- Quote ---
       >
       > 4. No person shall cause any motor vehicle to proceed in a
       northbound direction on Rivercourt Road past a point at its
       junction with the A4, Great West Road and;
       >
       --- End Quote ---
       This ends with that hanging "and;". It makes no sense because it
       is followed by paragraph 5, which begins as a new sentence:
       --- Quote ---
       >
       > 5. The controls specified in article 4 do not apply in respect
       of a vehicle being in any length of the restricted streets –
       > [indent](a) with a valid permit;
       > (b) being a bus, local bus, taxi and pedal cycle;... [/indent]
       >
       --- End Quote ---
       After this comes paragraph 6 which, along with the Schedule,
       shortens the existing one-way south-to-north restriction on
       Rivercourt Road from
       --- Quote ---
       >
       > between Great West Road and King Street
       --- End Quote ---
       to
       --- Quote ---
       >
       > between Great West Road and a point and a point 8.30 meters
       south of the southern building wall of No. 17 Rivercourt Road
       >
       --- End Quote ---
       The Public Notice
       The Public Notice puts these differently:
       --- Quote ---
       >
       > 2. The general effect of the above-mentioned Order will be to
       prohibit as an experiment any motor vehicle to proceed in a
       northbound direction on Rivercourt Road past a point at its
       junction with the A4, Great West Road and;-.
       >
       > 3. to revoke the one-way northbound traffic flow restriction
       on Rivercourt Road and to introduce as an experiment a
       northbound one way restriction on Rivercourt Road between its
       junction with the A4, Great West Road and a point 8.30 meters
       south of the southern building wall of No. 17 Rivercourt Road.
       >
       > 4. The controls specified in article 2 would not apply in
       respect of a vehicle being in any length of the restricted
       streets -
       > [indent]
       > a. with a valid permit;
       > b. being a bus, local bus, taxi and pedal cycle;[/indent]
       >
       --- End Quote ---
       This makes a lot more sense. First, the paragraphs are numbered
       sequentially. Secondly, it is clear that paragraph 2 (the TMO's
       paragraph 4) is intended not as a complete sentence but as half
       of a single sentence spread across paragraphs 2 and 3 (the
       latter being given effect by the TMO's paragraph 6 and the
       Schedule).
       It's as though one person (a highway engineer, perhaps?) drafted
       the Public Notice as a statement of what the TMO would do and
       then a second person botched the job of translating that into
       formal legal language.
       I surmise that the policy maker knew that the Council's
       Rivercourt Road started to the north of the combined
       cycleway/footway on Great West Road and specified that:
       - Rivercourt Road between the cycleway/footway and King Street
       was to become two-way with unrestricted access from King Street;
       - access from Great West Road was to be restricted to buses,
       taxis, cycles and permit holders.
       Where No Motor Vehicles was Intended to Apply
       The Public Notice makes it clear that the restriction on the
       classes of vehicle which can enter Rivercourt Road from Great
       West Road was intended to apply just at
       --- Quote ---
       >
       > a point at its junction with the A4, Great West Road
       >
       --- End Quote ---
       and not (as I had surmised) along the length of the one-way
       south-to-north restriction.
       H&F now acknowledge that the junction between A4, Great West
       Road and Rivercourt Road lies at the northern boundary of the
       combined cycleway/footway to the north of the eastbound
       carriageway.
       But suppose that it was a highway engineer who worked out how
       the TMO would achieve the policy maker's objectives. Highway
       engineers inevitably approach the design of highways from a
       motorist's point of view. Such a person might well consider that
       the junction lay at the edge-of-carriageway road markings. Then
       paragraph 2 of the Public Notice's "point at its junction with
       the A4, Great West Road" would have lain on the
       edge-of-carriageway road markings.
       Road Markings on Slip Road
       Now consider the road markings which H&F painted on the exit
       slip road. They are diagram 1040.3 (ignore the stated diagram
       number 1040.4 on the plan
  HTML https://www.whatdotheyknow.com/request/rivercourt_road_experimental_tmo/response/3055381/attach/3/Rivercourt%20Road%20A4%20Junction%20Layout%20Plan.pdf).<br
       />This is TSRGD 2016 Schedule 11 Part 4
  HTML https://www.legislation.gov.uk/uksi/2016/362/schedule/11/part/4/made<br
       />Item 23 and means:
       --- Quote ---
       >
       > Reduction in the number of lanes, or area not available to
       traffic, on the main carriageway or slip road of a motorway or
       all-purpose dual carriageway road
       >
       --- End Quote ---
       It is the correct road marking for a slip road from a
       dual-carriageway and prohibits all traffic from crossing the
       solid white line at its boundary. It is precisely what a highway
       engineer would specify to prohibit vehicles which have started
       to turn off Great West Road from returning to the carriageway.
       Unless the entire manoeuvre can be completed without any part of
       the vehicle's crossing one of the solid white lines, an offence
       is committed.
       A mistaken belief that TfL's highway coincided with the
       carriageway could also explain H&F's failure to give TfL notice
       under s.121B of Road Traffic Regulation Act 1984
  HTML https://www.legislation.gov.uk/ukpga/1984/27/section/121B
       of a
       proposed change to one of H&F's highways which could affect
       TfL's highway. It would certainly explain why H&F felt able to
       change the road markings on that part of the slip road which
       lies within TfL's highway.
       There's still the risk that vehicles turning onto Rivercourt
       Road will crash into vehicles which have come south from King
       Street and are doing a 3-point turn just north of the Give Way
       lines. This would have an impact on the carriageway of the A4,
       as would vehicles which come south and ignore the No Entry signs
       (see this PCN video
  HTML https://i.imgur.com/7A09bY9.mp4).
       The road markings on the exit slip road therefore lend support
       to the inference that the intended "point at its junction with
       the A4, Great West Road" lay on the edge-of-carriageway road
       markings on Great West Road.
       South-to-North Restriction
       Further support for this is provided by the definition of the
       south-to-north restriction. This begins at the "junction between
       Great West Road and Rivercourt Road". It ends at "a point 8.30
       meters south of the southern building wall of No. 17 Rivercourt
       Road". H&F have stated that this latter point lies on the
       northern boundary of the combined cycleway/footway. If the
       "junction between Great West Road and Rivercourt Road" lies at
       the edge-of-carriageway markings, the south-to-north restriction
       applies to the exit slip road where it crosses the grass verge
       and combined cycleway/footway, a distance of some 6m.
       Reality Intrudes
       Unfortunately for H&F, TfL's highway, Great West Road, includes
       the verge and the combined cycleway/footway. At some point, H&F
       accepted reality. In their responses to my FoI request, they
       acknowledge that the junction lies at the northern edge of the
       cycleway/footway.
       Notwithstanding this, they maintain that the south-to-north
       restriction is of length greater than zero. As I have set out in
       Reply #1
  HTML https://www.ftla.uk/the-flame-pit/rivercourt-road-the-tmo/msg80980/#msg80980,<br
       />the fact that Great West Road makes an acute angle with
       Rivercourt Road means that the end of the restriction lies to
       the south of its start. As it's defined as a south-to-north
       restriction, this isn't meaningful, so the restriction is void.
       Implications
       To return to the Public Notice, its placing the south-to-north
       restriction as paragraph 3 means that when paragraph 4 refers to
       "restricted streets", it made sense to its authors because
       paragraph 3 has just applied a restriction to what they
       considered to be part of Rivercourt Road. With that restriction
       in place, paragraph 4 relieves buses, taxis and permit holders,
       which have been in a "restricted street" (i.e. the
       south-to-north restriction) from the prohibition of paragraph 2.
       In the real world, the "junction with Great West Road" lies to
       the north of the end of the south-to-north restriction. This
       means that not only is there no south-to-north restriction but
       that the "restricted street" does not exist. It follows that
       paragraph 4 of the Public Notice (paragraph 5 of the TMO) does
       not relieve buses, taxis and permit holders from the prohibition
       of paragraph 2 of the Public Notice (paragraph 4 of the TMO).
       Conclusions
       I'm not convinced that a TMO can impose a restriction on
       crossing a line or passing a point, especially when that happens
       on another traffic authority's highway. Assuming that it can,
       TMO 2037 has these effects:
       - the entire length of Rivercourt Road between the northern
       boundary of the cycleway/footway on Great West Road and King
       Street is open to all vehicles in both directions;
       - all motor vehicles (with no exceptions) are prohibited from
       crossing the northern boundary of the cycleway/footway
       northbound; cyclists may do so;
       - the No Entry signs and Give Way road markings have been placed
       4m too far north; they should be at the northern edge of the
       combined cycleway/footway.
       Traffic authorities are required to place signage to show the
       effect of TMOs which they impose. Needless to say, the signage
       H&F have placed does not show the effects of the TMO. For
       instance, the "flying motor cycle sign" lies 1-2m north of the
       (single) point where the prohibition on northbound traffic
       applies. This is where the No Entry signs and the Give Way lines
       should lie (but there would be even more crashes if they did).
       Given the road markings on the exit slip road, motorists on the
       A4 need to be advised that they are not to start turning left
       onto Rivercourt Road. Once they have started to turn left, they
       commit an offence if they turn back onto the A4. They incur a
       PCN if they continue. H&F's variable message signs do not
       provide the necessary information and are beyond the 6-month
       time limit on such "temporary" signs. As has been stated in so
       many cases,
       --- Quote ---
       >
       > If the signs do not in fact provide adequate information no
       offence is committed; see James v Cavey [1967] 2 QB 676
       >
       --- End Quote ---
       Unfortunately, that doesn't stop H&F from sending out PCNs.
       P.S.
       I now think I know why H&F moved the Give Way lines north: it
       was because the northern edge of the northern Give Way line
       should lie between the No Entry signs. I don't know why they
       didn't instead move the No Entry signs south so they were on the
       back of what are now a pair of No Motor Vehicle signs.
       #Post#: 82094--------------------------------------------------
       Re: Rivercourt Road: The TMO
   DIR By: Bustagate
       Date: July 22, 2025, 6:49 am
       ---------------------------------------------------------
       I have now received from TfL a plan from their Property Asset
       Register
  HTML https://www.whatdotheyknow.com/request/junction_of_great_west_road_with/response/3090738/attach/4/image002.png<br
       />which shows separately:
       - ownership (shaded green)
       - control (between dashed blue lines)
       of land along Great West Road.
       This confirms what is shown in the TFL Road Network plan
  HTML https://tfl.maps.arcgis.com/apps/webappviewer/index.html?id=99bc8bbbe8c94af291f5a5bfc77a00dd<br
       />as the land controlled by TfL, except that it is more precise
       about where the boundary lies. It lies, as expected, along the
       northern edge of the combined cycleway/footway to the north of
       Great West Road.
       What I had not expected was that TfL does not own the land where
       Great West Road crosses the former Rivercourt Road. Ownership of
       the land beneath highways is complicated and can be lost in the
       mists of time, which makes it hard to acquire compulsorily. What
       matters is who controls the land as a highway. That is now
       clear: to the north of the cycleway/footway it is H&F; to its
       south TfL.
       TfL's full reply is here
  HTML https://www.whatdotheyknow.com/request/junction_of_great_west_road_with#incoming-3090738.<br
       />The curious narrow white strip running NW - SE in the
       westbound
       carriageway of Great West Road near Furnivall Gardens appears to
       be part of Hampshire Hog Lane, which ran all the way to Upper
       Mall.
       Another useful plan is City of London's
  HTML https://www.mapping.cityoflondon.gov.uk/geocortex/mapping/?viewer=compass,<br
       />which displays Ordnance Survey data. Among the layers which
       you
       can display (checkboxes at left) is TfL Highway area.
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