Freight Vehicle (truck) Model As Part of the Federal Traffic Model for Bavaria



Freight Vehicle (truck) Model As Part of the Federal Traffic Model for Bavaria

Authors

Stefan Schrempp, TCI Röhling - Transport Consulting International

Description

The federal state of Bavaria (Germany) is currently developing a national transport model, focus on public and private transport on regional level. Objective of the transport model design will be a high level of transparency of input and output data, as well as the used methodological aspects. In particular the availability of the results to all stakeholders will be foreseen.

Abstract

The federal state of Bavaria (Germany) is currently developing a national transport model, focus on public and private transport on regional level. Objective of the transport model design will be a high level of transparency of input and output data, as well as the used methodological aspects. In particular the availability of the results to all stakeholders will be foreseen.

This is one of the major characteristics and differences between the most transport models on national or regional level.

Within this context the freight vehicle truck model will be currently developed. One of the transparency aspects is the discussion and presentation of approach and the main results among experts.

Outcome of the model is an origin/destination matrix of daily truck trips. Input of the model is a model of spatial pattern based on a certain structure of data assignment and a deterrence matrix as a result of network assignments

The paper describes the main characteristics of the model:
- The zoning system, which is mainly based on municipality level
- Segmentation of truck weight classes and several different economical categories.
- The basic structure of the model, which reflects transport and logistic chains on a macroscopic level. This paper will be focused on the description of the demand and distribution approach of the model. Another issue here will be the integration and analysis of the empirical data and model input – mainly the latest German survey of LGV – (Kraftfahrzeugverkehr in Deutschland - KID 2010).
- Data that is required for spatial pattern model.

Other important topics in paper will be the approach and results of the model calibration: This is based on:
- Comparison between network counting data and model results.
- Adjustments of empirical distance band distribution to model results.

Finally also weaknesses and constraints of the modeling approach will be analyzed. This can be demonstrated and shown mainly within:
- by national spin-off effects,
- the phenomenon of the so called network splitting in modeling the transport chains,
- limitations of long-term forecasts.

Publisher

Association for European Transport