Program for the Economic Assessment of Road Schemes (PEARS)
PEARS is an economic assessment package, developed and maintained by Transport Scotland, that has been specifically designed for use with the output from traffic microsimulation models to assess the economic impacts of proposed road schemes.
PEARS carries out trip-based assessments of changes in travel time costs and vehicle operating costs. The costs of a trip-based assessment are derived by aggregating the costs of each individually modelled vehicle on the network.
It is a requirement in Scotland to use microsimulation traffic modelling combined with PEARS to model / assess WS2+1 schemes to ensure that any downstream benefits are captured.
Program Availability, Guidance Documents & Support
To obtain a copy of the PEARS program, plus associated documentation etc., users are directed to the PEARS website at:
http://www.sias.com/ng/PEARS/PEARS.htm
The program will be issued on CD-ROM together with an electronic copy of the most up to date PEARS User Guidance and other documentation (as PDFs).
The documentation can also be downloaded directly from the PEARS website.
Contacts
PEARS is developed and maintained by SIAS Ltd. on behalf of Transport Scotland.
For all general PEARS inquiries, plus support etc., users should email:
