Announcements << Role of Calibration in Quantitative Alternatives Analysis

Tom Creaseyby Tom Creasey at 10/30/2017 4:37 AM PST
HCQSC members and friends are invited to participate as stakeholders in a new FHWA project entitled “Role of Calibration in Quantitative Alternatives Analysis”. Its objective is to develop a methodology/framework that will allow traffic analysis tools to be calibrated in a way that will take into account not only base conditions, but also future conditions that are being modeled. This will enable validity of the analysis tool for the improvement alternatives being considered. Such a methodology/framework will enable more accurate traffic analyses; which will in turn lead to improved trust in analysis tools, and improved transportation decision-making overall. Successful project execution is believed to require three accomplishments: 1) produce fundamental speed-flow curves that can reflect geometric, operational, and ATDM changes, 2) develop libraries of scenarios with similar characteristics, and 3) conduct sensitivity analysis to capture the new fundamental curves and driver behaviors. The project’s principal investigator, Hani Mahmassani, has proposed a comprehensive technical approach to achieve these goals.

The project team will conduct three webinars throughout the period of performance. The first webinar, tentatively planned for December 2017, will gather input from stakeholders on Traffic Analysis Tool calibration methodologies and current practice. The second webinar will present content from the scan/review of current practices and calibration assessment for input, such that a gap analysis can be finalized. Stakeholder input will be sought on the breadth and technical depth of the material. Stakeholder input will guide the final version of the gap analysis. The third webinar will present the methodology/framework. Stakeholder input will be sought and will guide the framework development. The draft list of interested stakeholders must be completed by November 5th, 2017. Interested individuals should email to be considered for the stakeholder list. Activities may include attending any of the webinars, monitoring project progress, reviewing project deliverables, contributing information sources, or contributing ideas.


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