Research Article

Effects of Users’ Bounded Rationality on a Traffic Network Performance: A Simulation Study

Table 1

Notations used in this paper.

k Route.
a Link.
o Origin.
d Destination.
Total demand for the od pair.
Set of all od pairs of the network.
Perceived route utility.
Deterministic route utility.
Uncertainty or error term.
Link error term.
Route choice set for od pair.
Number of routes listed in the route choice set per each od pair.
Flow of route k.
Link flow.
Dummy variable that equals 1 if link a belongs to route k.
Set of links that define the graph.
Aspiration level defined at the od level.
Vector containing all deterministic route utilities.
Tolerance or Indifference Band.
Dummy variable that equals 1 if route p is listed on the choice set.
Dummy variable that equals 1 if route q is listed on the choice set.
Set of satisficing routes.
User Equilibrium route travel time.
Users’ strict preference order for the pair.
Number of draws for the error term discretization.
Number of violations.
Pre-defined path convergence threshold.
and Scale and shape parameters of a gamma distribution.
Iterative counter of the MSA method.
Tolerance for the stopping criterium of the MSWA-I.
Maximum number of descent step iterations.
Free-flow travel time of link a.
Simulation period.
Number of assignment repetitions for BR-SUE and indifferent preferences search order.