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The methodology for determining traffic flow on motorway sections before and after an expected obstacle : a tunnel Zorin, Ulrich

Av: Utgivningsinformation: SP Sveriges tekniska forskningsinstitut, 2008; SP rapport 2008:11, Beskrivning: s. 63-9ISBN:
  • 9789185829255
Ämnen: Bibl.nr: VTI P0614:2008-11Location: Abstrakt: Traffic safety on motorways depends on the intensity and the method of the traffic flow. The method of the traffic flow is changing first of all on the motorway sections with obstacles, expected and unexpected. This exercise will discuss an expected obstacle - a tunnel. Speed of the traffic flow before a tunnel is reducing because of speed limit. Braking and acceleration (before and after a tunnel) negatively influence on traffic safety. This exercise also discusses possibilities for projecting the level of safety of the traffic flow before and after an expected obstacle - a tunnel. For this purpose, the research introduces new indexes of traffic safety. With help of this indexes we can project the level of the traffic safety on tunnel sections.
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Traffic safety on motorways depends on the intensity and the method of the traffic flow. The method of the traffic flow is changing first of all on the motorway sections with obstacles, expected and unexpected. This exercise will discuss an expected obstacle - a tunnel. Speed of the traffic flow before a tunnel is reducing because of speed limit. Braking and acceleration (before and after a tunnel) negatively influence on traffic safety. This exercise also discusses possibilities for projecting the level of safety of the traffic flow before and after an expected obstacle - a tunnel. For this purpose, the research introduces new indexes of traffic safety. With help of this indexes we can project the level of the traffic safety on tunnel sections.