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The New Italian Road Code and the virtues of the ‘shame lane’

  • Matteo Richiardi

    (LABORatorio Revelli Centre for Employment Studies)

In July 2003 a new Road Code was approved by the Italian parliament. Among many reforms whose validity is not questioned here, the new law states that on three-lane motorways the right lane should not be reserved anymore to slow vehicles alone. As in two-lane roads, all vehicles must now drive on the right lane, as long as it is not occupied by other vehicles. The model developed in this paper casts doubts on the validity of such a change, suggesting that the old rule generally performs better, in terms of number of accidents, average speed and motorway capacity, than the new one. This conclusion is shown to be extremely robust to refinements of the main assumptions concerning driving attitudes and the stochastic arrival of accidents.

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File URL: http://128.118.178.162/eps/comp/papers/0401/0401002.pdf
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Paper provided by EconWPA in its series Computational Economics with number 0401002.

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Length: 21 pages
Date of creation: 07 Jan 2004
Date of revision:
Handle: RePEc:wpa:wuwpco:0401002
Note: Type of Document - pdf; prepared on WinXP; pages: 21
Contact details of provider: Web page: http://128.118.178.162

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  1. repec:dgr:uvatin:19990091 is not listed on IDEAS
  2. Elliott Peranson & Alvin E. Roth, 1999. "The Redesign of the Matching Market for American Physicians: Some Engineering Aspects of Economic Design," American Economic Review, American Economic Association, vol. 89(4), pages 748-780, September.
  3. Arnott, Richard & de Palma, Andre & Lindsey, Robin, 1990. "Economics of a bottleneck," Journal of Urban Economics, Elsevier, vol. 27(1), pages 111-130, January.
  4. Gipps, P. G., 1986. "A model for the structure of lane-changing decisions," Transportation Research Part B: Methodological, Elsevier, vol. 20(5), pages 403-414, October.
  5. Vickrey, William S, 1969. "Congestion Theory and Transport Investment," American Economic Review, American Economic Association, vol. 59(2), pages 251-60, May.
  6. repec:dgr:uvatin:20020062 is not listed on IDEAS
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