The Impacts of the Amsterdam Ring Road: Five Years After
JONG G C de, KROES E, Hague Consulting Group, MOURIK H van and HOORN A I J M van der, Ministry of Transport (AVV), The Netherlands
The Amsterdam Ringroad was completed in September 1990. On 28 September 1990 the final section, the Zeeburgertunnel (east of Amsterdam; see Figure 1), was opened for traffic. The impacts on transport have been investigated as part of the Amsterdam Ringroa
The Amsterdam Ringroad was completed in September 1990. On 28 September 1990 the final section, the Zeeburgertunnel (east of Amsterdam; see Figure 1), was opened for traffic. The impacts on transport have been investigated as part of the Amsterdam Ringroad Study. The outcomes of this study have been presented at several conferences and in journals (e.g. Kroes et al. in Transportation No. 1 of 1996). The main conclusions were that the opening of the Ringroad had caused large shifts in departure time choice and route choice, but that the changes in mode choice and choice of travel frequency and destination were relatively small. These outcomes have received considerable attention, not only in The Netherlands, but also abroad (e.g. in the SACTRA discussions in the UK and the induced demand studies for the European Community).
The above results from the Amsterdam Ringroad Study are in fact short term outcomes: they refer to a one-year period. For the longer term, only model predictions of the impacts, using the Netherlands' National Model System (NMS), were available.
In this paper we present the traffic outcomes of the opening of the Amsterdam Ringroad for a five-year period. These outcomes are based on actual traffic counts. We also present the main outcomes of a study into the impacts of the opening of the Wijkertunnel. This tunnel crosses the same screenline, but is located more to the west, close to the existing heavily congested Velsertunnel (see Figure 1). The primary aim of the Wijkertunnel, which was opened in July 1996~ was to relief this bottleneck. The impacts of this project on travel behaviour and traffic patterns have been investigated using before-and:after-studies (both interviews and counts).
Association for European Transport