Examination of catchment areas for public transport

The paper presents an approach to examine catchment areas for stops in high quality public transport systems based on the street network in the examined area. This is achieved by implementing the Service Area function from the ArcGIS extension Network Analyst. The approach is compared to a more simple approach using only the Euclidean distance from the examined stop and the paper describes the differences in detail-level of the results. Furthermore, the paper describes how the Service Area approach can be used to examine increments in the catchment areas by adding extra entrances to stations or by making changes in the street network around the station. The paper also discusses the degree of realism in used GIS networks and how it can affect the size of the catchment areas. It is concluded that the Service Area approach improves the detail-level and accuracy in catchment area analyses. These improvements are well suited for examinations of changes in station entrances and/or street network

Sensitivity analysis of socio-economic values of time for public transport projects

The socio-economic time benefits of two light rail projects in Copenhagen are investigated using three different sets of values of time. The first set is the one the Ministry of Transport recommends for use in socio-economic analysis in Denmark; this is used as basis for comparison with the two other sets of values of time. The second set is the expected new recommended values of time that has the same time values for non-business travel. The third set is estimated from traffic modelling parameters and operates with different in-vehicle time values; the reason for this is thoroughly described supported by examples. Traffic modelling of the two light rail projects has been performed and the results are used to generate the time benefits. The time benefits for the two light rail projects using the expected new values of time will increase around 20% compared to the result when using the values recommended by the Ministry of Transport. Differentiated in-vehicle values prove to generate an even higher increase in time benefits, but vary depending on the projects