This guidance manual contains procedures for identifying, collecting, organising, and using data for transportation planning purposes. Specific discussions are included ion strategic assessments of data needs, a framework for organising data, cost effectiveness of data, and the integration and consistency of data. The guidance contained herein will be of interest to planners in state departments of transportation (DOTs) and metropolitan planning organisations (MPOs). Interest in planning and decision-making processes prompted by the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA) and the Clean Air Act Amendments of 1990 (CAAA) resulted in new and expanded data requirements for passenger and freight multimodal transportation planning activities of state DOTs and MPOs. As multimodal planning methods evolve and are applied, the availability of data must keep pace. (A)
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