Research Article

Unbalanced Multiple Left Turn Lane Usage Modelling: From Individual Choice to Aggregate Volume

Table 3

Dynamic influential factors of individual LTL choices.

No.CategoryNameUnit/Measurement

DF1Turning curveSkewedness0=no, 1=yes.

DF2Intersection approachQueue length in inside LTLVehicle number; measured at the DLTLs/TLTLs.
DF3Queue length in median LTLVehicle number; measured at the TLTLs.
DF4Queue length in outside LTLVehicle number; measured at the DLTLs/TLTLs.
DF5Queue length difference in inside and median LTLsVehicle number; queue length in median lane minus that in inside lane at the TLTLs.
DF6Queue length difference in median and outside LTLsVehicle number; queue length in median lane minus that in outside lane at the TLTLs.
DF7Queue length difference in inside and outside LTLsVehicle number; queue length in outside lane minus that in inside lane at the DLTLs.
DF8Lane type of inside LTL0=unshadowed, 1=shadowed.
DF9Lane type of median LTL0=unshadowed, 1=shadowed.
DF10Lane type of outside LTL0=unshadowed, 1=shadowed.
DF11Available of shadowed LTL0=no, 1=yes.

DF12Vehicle typeVehicle type at queue back in inside LTL0=passenger car, 1=heavy vehicle; measured at the DLTLs/TLTLs;
DF13Vehicle type at queue back in median LTL0=passenger car, 1=heavy vehicle; measured at the TLTLs;
DF14Vehicle type at queue back in outside LTL0=passenger car, 1=heavy vehicle; measured at the DLTLs/TLTLs;
DF15Number of heavy vehicles in inside LTLVehicle number; measured at the DLTLs/TLTLs.
DF16Number of heavy vehicles in median LTLVehicle number; measured at the TLTLs.
DF17Number of heavy vehicles in outside LTLVehicle number; measured at the DLTLs/TLTLs.
DF18Number difference of heavy vehicles in inside and outside LTLsVehicle number; number of heavy vehicle in outside lane minus that in inside lane at the DLTLs.
DF19Number difference of heavy vehicles in median and inside LTLsVehicle number; number of heavy vehicle in median lane minus that in inside lane at the TLTLs.
DF20Number difference of heavy vehicles in median and outside LTLsVehicle number; number of heavy vehicle in median lane minus that in outside lane at the TLTLs.
DF21Subject vehicle type0=Passenger car; 1=Heavy vehicle.