Accessibility appraisal of integrated land-use/transport policy strategies: It’s not just adding up travel time savings

• Type: Article in International Conference Proceedings Book
• Date: 2008

Authors

Karst Geurs (Author) Other; Gerard de Jong (Author) Other; Barry Zondag (Author) Other; Michiel de Bok (Author) FEUP

Conference proceedings International

Title: The Future of Accessibility

Pages: 639-660

NECTAR Workshop

Las Palmas de Gran Canaria, 27-28 June

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Technological sciences > Engineering > Civil engineering > Infrastructures engineering ; Technological sciences > Technology > Transport technology

Other information

Abstract (EN): In this paper, we examined the accessibility benefits from some land-use policy strategies for the Netherlands that anticipate to a greater or lesser degree on expected climate changes. A disaggregate rule-of-half and logsum measure of consumer surplus were computed using the Dutch national land-use/transport interaction model TIGRIS XL. The estimations show that the rule-of-half is clearly not able to pick up all accessibility impacts resulting from the land-use changes. The rule-of-half measure only captures second order effects of land-use policies, that is, changes in travel time and cost, as a result of changes in transport choices that result from changes in land use. But the accessibility impacts from the land-use scenarios examined are largely due to changes in destination utility not incorporated in the rule-of-half method. As a result, the accessibility benefits from land-use strategies computed with the logsum measure can be very large, whereas rule-of-half benefits are small or have the wrong sign. So, ignoring these first order effects may lead to serious biases. The logsum accessibility measure is concluded to be an elegant and convenient solution to measure the accessibility benefits from land-use and transport policy measures, when a travel demand model (using discrete choice models) is available that already produces logsums. This approach may form an important step towards improving the current (Dutch) standard practice of accessibility appraisal.

Language: Portuguese

Type (Professor's evaluation): Scientific