Capacity of two lane undivided tunnels on Austrian motorways
Abstract
Abstract: The motorways in Austria typically have a 2 lanes per carriageway. However, there are a number of 2 lane undivided alpine tunnels which make a reduction from 2 to 1 lane per carriageway necessary. This creates bottlenecks and so for the long-term planning process it is of high importance to know the maximum capacity of those tunnels. Therefore, the effects of different parameters on the traffic flow and on the capacity were investigated (e.g. lane occupancy, percentage of heavy vehicles, main traffic purpose, traffic volume management, time of day etc.). The traffic data of four tunnels (Ambergtunnel, Pfändertunnel, Gräberntunnel und Katschbergtunnel) were evaluated, recorded by automatic traffic counters, by counting plates and by video analyses. Generally, the traffic flow within the tunnels turned out to be much more homogenous than outside on free sections. One essential outcome of the study is, that the capacity of the tunnel-section (approximately about 1750 pc-units/h) is limited by the weaving section in front of the tunnels mouth. The tunnel itself could manage more traffic volume than the weaving areas in the actual design permit. Could it be managed to increase the weaving capacity approaching the tunnel, simultaneous, the capacity of the whole tunnel-section would be improved.
motorway tunnel capacity weaving area traffic flow
Publikationen
Leistungsfähigkeit von zweistreifigen Tunnelbauwerken mit Gegenverkehr im österreichischen Autobahnnetz.
Autoren: Sammer, G., Berger, W.J., Neumann, A., Mahdy, H., Mensik, K. Jahr: 2001
Forschungsbericht (extern. Auftraggeber)
Kapazität einröhriger Autobahntunnel - Blockabfertigung an der A10 Tauernautobahn
Autoren: Berger, W J Jahr: 2003
Journal articles
Mitarbeiter*Innen
Gerd Sammer
O.Univ.Prof. Dipl.-Ing. Dr.techn. Gerd Sammer
gerd.sammer@boku.ac.at
Tel: +43 1 47654-85635
Project Leader
02.05.2000 - 31.12.2000
Wolfgang Josef Berger
Ass.Prof. Dipl.-Ing. Dr.nat.techn. Wolfgang Josef Berger
wolfgang.j.berger@boku.ac.at
Tel: +43 1 47654-85616
Sub Projectleader
02.05.2000 - 31.12.2000
Alexander Neumann
Dipl.-Ing. Dr.nat.techn. Alexander Neumann
neumann@mediative-solutions.at
Project Staff
02.05.2000 - 31.12.2000