Static Traffic Assignment Pack

Multi class assignment techniques

OmniTRANS offers high-end static assignment techniques through its class OtTraffic. It supports multi class assignment and includes junction modelling to incorporate intersection delays in assignments in urban areas.

Assignment methods

OmniTRANS supports a range of assignment techniques, ranging from deterministic All-or-Nothing to stochastic capacity restraint methods. Wardrop equilibrium methods such as User Equilibrium and System Optimum are also provided.

Multi-modal, multi-temporal and multi-class

Exploiting the OmniTRANS model dimensions and integrated network concept, multi class assignment can be performed easily using the class  OtTraffic. The multi-modal network definitions allow easy interaction between competing modes, using the concept of shared space. Having defined the transport network in a multi-temporal structure, consistent assignments can be performed for multiple time periods.

Route choice behaviour and skimming

Modellers can simulate traveller behaviour using a range of controls , including multiple types of volume delay functions and route choice factors. Chosen routes can be stored for analysis. Other standard modelling outputs, such as skim matrices for travel distance, travel  time and travel cost can be output.

Junction Modelling

A seamless integration between OtTraffic and the OmniTRANS Junction Modelling engine allows the calculation of intersection delays during the assignment. Multiple junction types are supported, ranging from give-way to multi-phase signalised junctions. The resulting delays are directly used in the route choice behaviour.

Feature diagram

The Static Traffic Assignment Pack gives access to the following features:

Requirement

This pack requires the presence of the Data Manager pack.