Research Article

Pedestrian Delay Model for Continuous Flow Intersections under Three Design Patterns

Table 1

Notations of key model parameters and variables.

NotationDefinition

Index of the design pattern, for the conventional pattern, the exclusive phase pattern, and the interlaced crossing pattern, respectively
Index of pedestrian movements, , represents through movement and diagonal movement respectively
Cycle length of the intersection, s
Green time of the crosswalk, s
Red time of the crosswalk, s
Interval from the start of green of the crosswalk to that of the crosswalk on the crossing street, s
Interval from the start of green of the crosswalk on the crossing street to that of the crosswalk on the studied street, s
Walking time on the crosswalk, s
Walking time on the crosswalk on the crossing street, s
Waiting time for pedestrian to decide whether to cross, s
Passing time of vehicle, s
Acceptable gap for pedestrians to cross, s
, Arriving rate of pedestrian for through movement and diagonal movement, respectively, ped/s
Saturation rate of pedestrian, ped/s
Width of one vehicle lane, m
Speed of pedestrian crossing the street, m/s
Arriving rate of conflicting vehicles, veh/s
Arriving rate of conflicting vehicles on the crossing street, veh/s
Length of the segment in the calculation diagrams
Area of the shadow in the calculation diagrams
Delay caused by signal control for pedestrian movement j under design pattern , s
Delay caused by conflicts for pedestrian movement j under design pattern , s
Delay of pedestrian under design pattern , s