Journal of Advanced Transportation / 2020 / Article / Tab 1

Research Article

Optimal Design of Bus Stop Locations Integrating Continuum Approximation and Discrete Models

Table 1

Notation.

VariablesUnitDescriptions

Number of operation time periods
kmBus route length
Number of stops
RMB/dayTotal generalized system cost
RMBPatrons’ access/egress time cost at during period
RMBPatrons’ waiting time cost at during period
RMBPatrons’ in-vehicle travel time cost at during period
RMBAgency’s distance-based cost during period
RMBAgency’s time-based cost at location during period
RMBAgency’s amortized infrastructure cost at during period
RMBPatrons’ access/egress time cost during period
RMBPatrons’ in-vehicle travel time cost during period
RMBAgency’s distance-based cost during period
RMBAgency’s time-based cost during period
RMBAgency’s amortized infrastructure cost during period
hDuration of period
pax/km/hBoarding and alighting demand density at during period
paxOnboard flow passing stop
kmLocation of stop
The restricted locations to be avoided from being stop locations
kmLeft and right coverage boundaries of stop
pax/hBoarding and alighting volumes at stop during period
hHeadway during period
pax/hOnboard flow at during period
Stop/kmStop density at location
Subscript representing time periods

ParametersUnitDescriptions

m/s2Vehicle acceleration and deceleration
Pax/vehicleVehicle capacity
pax/stopStop capacity
kmMinimum distance between bus stops and restricted locations
RMB/hValue of access time
RMB/hValue of in-vehicle travel time
RMB/kmUnit cost of distance-based operation cost, e.g., vehicle fuel consumption cost
RMB/hUnit cost of the time-based cost, e.g., drivers’ wage and amortized vehicle purchase cost
RMB/hUnit amortized costs of stop construction
RMB/hUnit cost of stop maintenance
km/hPatrons’ average walking speed
km/hVehicles’ cruising speed during period
hTime delay due to bus deceleration and acceleration at stops
hAverage boarding and alighting delays per passenger
hAverage delay caused by opening door and closing door

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