Transferability and updating of disaggregate travel demand models
Transferability and updating of disaggregate travel demand models - dating in russia for
Bowman conducts development projects to implement activity-based models on the Day Sim software platform for the client's geographical region.He will serve as prime contractor, working in partnership with your technical model developers and any subcontractors as needed.
The system is demonstrated using data from the Boston metropolitan area.
The paper examines alternative updating methods for temporal transfer by imagining that only a sample of 2001 data is available.
The sensitivity of the performance of the updated models to the 2001 sample size is explored.
As a model estimation coach, Bowman guides and reviews the discrete choice model estimation of clients who want to do their own model development but also want to benefit from his technical knowledge and skills in econometric discrete choice modeling.
These services can be provided as part of a major model development contract, or under a retainer or on-call contract.
Here are the reports from those studies (pdf files).
Tampa Bay region (2008): Activity-based model design and workplan SCAG (2009): Strategy for Activity-Based Travel Demand Model Development with Travel Survey Danish Road Directorate (Vejdirektoratet) (2014): Requirements and designs for incorporating bicycling into the Copenhagen Day Sim Activity-based model.The purpose of such evaluations might be to identify needed model improvements or to satisfy the requirements of investors.Bowman performed this type of analysis for potential investors in a major Asian city's elevated rail public transport system.This paper examines the temporal transferability of the zonal accident prediction models by using appropriate evaluation measures of predictive performance to assess whether the relationship between the dependent and independent variables holds reasonably well across time.The two temporal contexts are the years 19, with updated 1996 models being used to predict 2001 accidents in each traffic zone of the City of Toronto.Past clients include Denver Regional Council of Governments, Puget Sound Regional Council and Danish Road Directorate.