We develop traffic models to support the decision-making process for complex transportation infrastructure projects
THE ISSUE
- The design results deal with projects:
- of high cost and significant difficulty
- o with important impacts on the daily lives of citizens and the economy,
- o that incorporate a large number of predictions/estimations for future operating conditions.
- It is necessary to ensure the best possible design results, taking into account the levels of uncertainty due to estimates.
- Ensuring the issue by structuring and effectively calibrating a Traffic Model.
SOLUTIONS
The Transport Planning and Sustainable Mobility department of Lever Development Consultants S.A. has developed more than four (4) macroscopic traffic models, while it has participated in the formulation of five (5) others, for different sizes of cities in the greek territory.
Specifically, regarding the formulation of traffic models:
- Ability to build a multi-modal four-step model (4-step model) for the prediction of travel demand.
- Design, collection and processing of traffic data,
- Data utilization in the construction of a traffic model.
- Design, coordination and supervision of a Travel Characteristics Survey (Origin – Destination)
- Design and coordination of a Stated Preferences Survey (building travel distribution equations by mode of transport)
- Integrating proposed interventions into the traffic model for impact assessment
While macroscopic traffic prediction models are essential for strategic transport planning, more specialized studies require a different degree of detail. The department’s executives also have relevant experience in microscopic simulation models of vehicle, bicycle and pedestrian traffic. This specific simulation allows for a more detailed depiction and better understanding of the network’s operation after an intervention.
RESULT
Each traffic model is a powerful tool in decision-making processes. It is the only means for holistic assessment of the impacts of a proposed project or policy and can truly contribute to the effective planning for the region.
