Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE credits
Static assignment methods have several limitations which form a motivation
for dynamic traffic assignment (DTA). The degree project is aligned with
a research project which aims to create a disaggregate model system. The
components are the travel demand model Regent, the MATSim simulation
framework and a commercial DTA package. The scope of the degree project is
the interaction between Regent and MATSim.
A synthetic population is generated by Regent. The goal of the degree
project is to transform this population onto a form that can be simulated by
MATSim and set up a simulation of the greater Stockholm area. A method
is developed to assign activity locations to building coordinates and set the
parameters of MATSim’s utility function. The model is calibrated using the
Cadyts tool and an agent-based dynamic traffic assignment is performed with
In a case study, road traffic in Stockholm is simulated. Traffic is underestimated
but the calibrated model manages to reproduce traffic counts in the
morning peak period if there are no incorrect link capacities. The Stockholm
bypass is evaluated in an alternative scenario. The result of this evaluation is
not reliable due to the prototypical nature of the model system.
2015. , 63 p.