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T.P.D.M.V.2.3
(Al/2001)
3.7.4 Signal Light Controlled Crossings
3.7.4.1 A typical layout of a signal light controlled crossing is shown in Diagram 3.7.4.1.
3.7.4.2 A signal light controlled crossing is more appropriate than a zebra crossing in the following
situations:
(i)
(ii)
(iii)
(iv)
(v)
where there are significant numbers of elderly and disabled pedestrians;
where pedestrian and/or vehicle flows are heavy;
at sites with relatively high approaching speeds;
at special sites such as contra-flow bus lanes; and
in areas operating under an Area Traffic Control System.
3.7.4.3 The use of staggered crossing should be avoided and CTEs should personally vet and
approve such installations, if absolutely necessary. If such type of crossing is provided, the
staggering should preferably be left-handed so that pedestrians stepping onto the central
reserve or refuge turn towards the approaching traffic to give them a better view of it. The
central refuge should be large enough to accommodate the expected numbers of pedestrians
gathered during each signal cycle.
3.7.4.4 The pedestrian signal aspects must be so positioned that pedestrians looking at these are also
facing the approaching traffic as shown in Diagram 3.7,4.1.
3.7.4.5 In the event that the crossing width is excessive, say more than 9 m, it is advisable to
conduct a site inspection to ascertain whether the provision of two sets of pedestrian signals
is required.
3.7.4.6 The method of calculating signal timings and similar details are contained in Volume 4 of
this manual.
3.7.4.7 When the signal light controlled crossing forms part of a signal controlled junction, careful
consideration should be given to the form and siting of the crossing. Split vehicle
movements in front of pedestrian crossing should be avoided as far as possible as this will
mislead pedestrians who may be tempted to cross in front of stopped vehicles. If split
phases have to be provided, channelising islands should be constructed in order to provide
refuges for pedestrians to wait. If refuges cannot be provided in these circumstances it is
preferable that the crossing point be relocated.
3.7.4.8 At signal controlled junction with light controlled crossings, vehicle/pedestrian conflict
points should be checked in addition to checking the vehicle/vehicle conflict points to
ensure adequate vehicle clearance time before commencement of the pedestrian green
signal.
3.7.4.9 Predicted flows may be taken as the averaged four highest hours. Flows should be measured
over a 50m length in the vicinity of the proposed location of the crossing, unless there is a
crossing place already defined. However even with a defined crossing place it may be
appropriate to extend the survey area to include pedestrians who may be crossing the road
near but not on the crossing place.