The latest in Multimodal’s series of technical posts changes focus slightly, this time concentrating on traffic data input and justifying its suitability for use in microsimulation modelling.Read More
This post focuses on the need to consider appropriate reduced speed areas for turns and then their associated speeds when developing microsimulation models.
Transport for London’s (TfL) Modelling Guidelines suggest that speed distributions used for turns should be dependent on the turning radii (see figure below).Read More
When developing a microsimulation model, one of the early steps is to ensure that the desired speed distributions used in the model are appropriate for the area and network modelled.
At Multimodal, we have a template which bases these initial distributions on two key datasets – the Department for Transport’s (DfT) ‘vehicle speed compliance’ tables and Transport for London’s (TfL) speed profiles.Read More
At Multimodal, we keep an eye on the PTV VISSIM Forum on LinkedIN and recently, have noticed an increased number of posts in relation to dynamic assignment.
As such, we thought it would be worth jotting down our thoughts and current methodology and sharing it publicly. We are well aware that there is no ‘one solution’ to undertaking dynamic assignment and this is very much our own current methodology, but by sharing it to a wider audience, we hope this can help to generate further debate and/ or improvement and provide some help to those who are looking for a starting point with dynamic assignment.Read More