United States Department of Transportation
i
Development of comprehensive guidance on obtaining service consumed data for NTD : final report, January 2009.
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2009-01-01
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By Chu, Xuehao
[PDF-574.89 KB]
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Alternative Title:Development of comprehensive guidance on obtaining service consumed data for the National Transit Database
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Edition:Final report.
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Abstract:This document proposes The National Transit Database Sampling Manual. It is developed for the
Federal Transit Administration (FTA) to replace its current guidance (circulars 2710.1A and 2710.2A) to
transit agencies on how they may estimate service consumed data through random sampling for the
National Transit Database (NTD). It covers the following topics for all modes and types of service:
?? How to obtain a 100% count
?? How to estimate passenger miles traveled for intermediate years
?? How to get a sampling plan
?? How to collect sample data
?? How to estimate annual unlinked passenger trips or passenger miles traveled
?? How to determine monthly unlinked passenger trips
It also comes with an Excel-based template for transit agencies to develop customized sampling plans
with sample data from their own services. The FTA is expected to formally adopt a shortened version of
this proposed NTD Sampling Manual but has not yet done so by January 2009. Even if the FTA were to
decide not to adopt it, however, the best practices presented and the template are useful for transit
agencies to reduce their reporting burdens while meeting FTA’s requirements.
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