Accommodating cyclists signalised intersections

For this reason, careful consideration should be given before applying.Bike boxes may be combined with an exclusive bicycle signal phase or leading bicycle interval through the use of bicycle signal heads to allow clearance of the bicycle queue prior to the green indication for motorists.Operational Performance Reducing pedestrian crossing distance via smaller curb radii reduces the amount of time needed to serve the pedestrian clearance time.This may result in shorter cycle lengths and less delay for all users.It also reduces the amount of time needed for the pedestrian phase, which reduces the delay for all other vehicular and pedestrian movements at the intersection.Three common methods of reducing pedestrian crossing distance are: Traffic engineers have also modified the location of the stop line and crosswalk to try to control where motorists stop on the intersection approach and where pedestrians cross.The City of Austin.“It appears that [ingress lanes] provide cyclists with a considerable advantage in legally accessing [the bike box].” The site with no feeder lane “clearly showed that many cyclists were unable to reach the reservoir.” An egress lane should be used to clearly define the potential area of conflict between motorists and bicyclists in the intersection when intersection is operating on a green signal indication.

This sign should use signal detection and actuation to activate only in the presence of bicyclists.

Existing guidelines recommend reconstructing the turning radius to a tighter turn to reduce turning speeds, shorten the crossing distance for pedestrians, and improve sight distance between pedestrians and motorists.

Exhibit 9-1 demonstrates that increasing the curb radius increases pedestrian crossing distance.

Tighter turning radii are even more important where street intersections are not at right angles.(104) Exhibit 9-1.

A curb radius increase from 15 ft to 50 ft increases the pedestrian crossing distance from 62 ft to 100 ft, all else being equal.

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Traffic control improvements directly applicable to pedestrians include: Each of these treatments is discussed in the following sections; median crossing islands were addressed in Chapter 8.

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