• PTV Visum enables better decisionsin Greater Halle

    PTV Visum
    enables better decisions
    in Greater Halle

Verkehrplus: Transport model for the greater Halle area

Project title:
Transport model for the Halle metropolitan area

Contracting Authority:
Halle municipal authority, office of town planning and Hallesche Verkehrs AG

verkehrplus Prognose, Planung und Strategieberatung GmbH

Sector: Public sector

Project duration:
6 months, 11/2011 - 5/2012; Update 9-12/2014

Project description:
The integrated transport model for Halle (Saale) maps mobility patterns in the city of Halle and the surrounding area. The model was designed for both strategic issues and detailed transport studies.

The multimodal transport model takes into account not only car drivers, HGVs, public transport, pedestrians and cyclists, but also car passengers. In order to ensure that the relationship between the municipal area and its surroundings are covered by the transport planning process, the region under study has been extended to include the neighbouring rural districts.
The input parameters for the transport model are

  • sociodemographic data (distribution of inhabitants, age structure, destination facilities, etc.),
  • behavioural data (on the basis of domestic surveys as MID (Mobility in Germany) and SrV (Mobility in Cities)),

  • data relating to transport supply (transport networks for all types of transport, timetables).

The model can map the fluctuations in the demand for transport throughout the day in a realistic manner. The matrices for different modes of transport for the individual time slots are not determined by recalculating on the basis of daily transport matrices. Instead, the results of transport surveys are calculated to the hour according to how the impedance matrices vary throughout the day. For example, the effects of more frequent public transport services in the evening can be quantified in the modal split.
In addition to the main network, the network model also incorporates the whole of the ancillary network. Individual turns at the intersections are modelled according to volume; impedances at SC were implemented by taking all signal timing plans into account.
Traffic forecasts are calculated on the basis of a small-scale population forecast from which the future distribution of persons with uniform behaviour patterns was derived.

Software & modules used:

  • PTV Visum
  • PTV Visem
  • VBS scripts (own developments) for controlling the processes and for analysing the results, as well as for including the frequency of public transport services according to the destination selected (add-on for Visem).
  • Assignment procedures: equilibrium assignment (car, HGV), successive assignment (1 iteration) for cycle and pedestrian traffic, timetable-based assignment (public transport)
  • Subnetwork generator
  • Merseburger Str. traffic study: additional PTV Vissim including VisVAP and dynamic assignment

The model provided the basis for a series of traffic studies (e.g. reorganisation of the Halle-Neustadt bus service). Because of its high spatial and temporal resolution, it was also suitable for generating travel demand matrices used as basic data for microscopic traffic flow simulation (e.g. Merseburger Str. traffic study).



verkehrplus Prognose, Planung und Strategieberatung GmbH

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