A Bus Signal Priority Model at Oversaturated Intersection under Stochastic Demand

Table 1

Nomenclature list.

	The set of traffic streams, indexed by m
	The set of allowable traffic streams in phase p
Input parameters
	The length of a signal cycle (s)
	The set of signal phases, indexed by p
	Number of traffic streams in the pth signal phase
	The average saturation outflow rate for traffic stream in phase p ()
	The total allowable green time ratio due to the lost time
	The average number of passengers of nonbus in phase p
	The average number of passengers of bus in phase p
	The bus conversion factor
	The minimum allowable green time in phase p (s)
	The maximum allowable green time in phase p (s)
	The inflow rate for traffic stream m in signal cycle ()
	The nonbus traffic inflow rate for traffic stream m in phase p in signal cycle ()
	The bus traffic inflow rate for traffic stream m in phase p in signal cycle ()
Variables
	The smoothed outflow rate in signal cycle in traffic stream , is affected by ()
	Green time ratio in phase p in signal cycle ,
	The vehicle queue length of traffic stream at the beginning of signal cycle (veh)