Updating of the Copenhagen Traffic Model with Respect to Bicycle Transport
Goran Vuk, Danish Road Directorate, Anders Tonning, Danish Road Directorate
Bicycling is an important transport mode in Copenhagen. This paper shows what is needed in order to model bicycle mode properly in the Copenhagen operational traffic model.
The operational traffic model for Copenhagen, the OTM model, has been in permanent improvement since 1996, when ver. 1.0 was built. However, it is only in 2016 when the efforts are made in order to improve the bicycle part of the OTM. The newest version of the model, i.e. OTM 7, has the project period 1. November 2016 till 31. December 2017, for a budget of Euro 300.000.
The present version of the OTM model, OTM 6.1, has only one explanatory variable for the bicycle mode, both in the demand and assignment parts of the model, i.e. the OD distance. Also, OTM 6.1 is based on some 900 zones, which means that about 20% of bicycle trips are zone intern. Both points are to be improved in the OTM 7 project:
- The new zone system will be based on 4.050 zones
- The assignment model will include the following variables: free flow and congested travel time, presence of green areas on the trip, route configuration with respect to flat/hilly paths, biking part configuration (e.g. street path, separate bike path, “bike motorway” part).
- The demand model will be based on the newly completed RP data from the Danish National Travel Survey (so called TU data). That, together with the newly calculated LoS, will be applied in the demand estimations, where it will be tried to estimate coefficients for: free flow and congested travel time, paring possibilities, socio-economic variables (e.g. sex, age, education level, job type, income).
OTM 7 project includes also improvements in the bicycle network. Finally, all basis matrices will be updated from 2010 to 2015.
Association for European Transport