1. Home
  2. Library
  3. How (In)accurate are demand forecasts in public works projects? the case of transportation

Title: How (In)accurate are demand forecasts in public works projects? the case of transportation

Language: English

Type: Document

Nature: Website

Published: January 1, 2005

Region: Global

Country: Global / Non-Specific

Keywords: PPP Reference Guide, Online Guide, PPP Basics

Document Link(s):

Document Summary:

This study of 210 transport projects in 14 countries finds that traffic was over-estimated for nine out of ten rail projects, by an average of 106 percent. The accuracy of traffic forecasts also varies for roads, but on average road traffic was found to be under-estimated.

Document Details:

Flyvbjerg, Bent, Mette K. Skamris Holm, and Søren L. Buhl. 2005. “How (In)accurate Are Demand Forecasts in Public Works Projects? The Case of Transportation.” Journal of the American Planning Association 71(2) 131-146. [#2207]

Image by Pixabay

Updated: June 27, 2022

Related Content