EasyWay is a project for harmonised Europe-wide
Intelligent Transport Services deployment on the
Trans-European Road Network
CROSS-BORDER
TRAFFIC MANAGMENT
BADEN-WUERTTEMBERG –
SWITZERLAND
The large-scale transport relations between Baden-Wuerttemberg and Switzerland are frequently subject to
severe incidents. Kind and extent of these incidents were defined for the relevant road networks to prepare
and coordinate traffic management measures together with the Swiss Federal Road Office. After finalization of the national Swiss traffic management plans this is envisaged for large-scale cross-border traffic.
Basic situation
For the large-scale road traffic relations between Switzerland
and Baden-Wuerttemberg, and particularly on the corridor
Milano - Basle – Baden-Wuerttemberg, single incidents are
of great importance. Mainly important are incidents in the
long distance road network with considerable traffic disturbances and longer duration with regard to the possibilities of
large-scale traffic control or traffic diversion.
The traffic disturbances do not only concern traffic between
Baden-Wuerttemberg and Switzerland, but also transit traffic
on the relations Central Germany – Upper Italy, particularly
in heavy goods vehicle traffic.
Relevant traffic relations
First of all the traffic flows were identified that are relevant for
traffic management measures in terms of extent and relations. The large-scale transport relations between BadenWuerttemberg and Switzerland (and beyond) primarily follow
along the Rhine axis and secondly along the connection
Ulm – Chur (- Milano). Heavy goods vehicle traffic concerns
mainly transit traffic between Central Germany and Upper
Italy. Holiday and leisure traffic prevails in private vehicle
traffic.
The A81 in the connection Stuttgart – Zurich has a lower
relevance in long-distance traffic in terms of volumes and
relations.
In private vehicle traffic more short-distance relations (commuters, shopping traffic, leisure traffic) with origin or destination in the North-Swiss region are of great importance.
Long distance traffic relations private vehicles related to border
crossing points [private veh. / normal workday]
Long distance traffic relations heavy goods vehicles related to
border crossing points [HGVs / normal workday]
Frequency of incidents and selection of scenarios
The further analysis concentrated on the long distance relations along the Rhine connection Karlsruhe - BasleSt.Gotthard – Milano. Here are the most important long distance traffic flows between Baden-Wuerttemberg and Switzerland. At the same time there are the decision points for
possible diversions on the Baden-Wuerttemberg side. Detailed analyses of incidents and incident reports for the German and Swiss long distance road network showed that a
closure of more than 8 hours (and a potential diversion via
Ulm and Bregenz) must be expected for about 11 times per
year in the North-South direction on A5 between Karlsruhe
and Basle. On Swiss side about 9 incidents per year (with
duration of more than 7 hours) were recorded in the NorthSouth direction on the St.Gotthard route (diversion within
Switzerland via the connection Augst-Bellinzona).
The scenarios were based on the following key indicators
(only in North-South direction):
•
•
Incident on A5 between Karlsruhe and D-CH border with
more thatn 8 hours duration (11 times per year) and
large-scale traffic diversion on German side via A8-A7A96-A13-A2 (Karlsruhe – Ulm – Memmingen – Bregenz
– Sargans – Reichenau – Bellinzona -Milano).
Incident on the St.Gotthard route on Swiss A2 with more
than 8 hours duration (9 times per year and shortdistance traffic diversion on Swiss side via the connection A2-A3-A13 (Augst – Zurich - Sarganser Land –
Chur – Thusis - Bellinzona).
The South-North relation was not considered here, as the
decision point is located in North-Bellinzona (South Switzerland.
Results
For the two incident scenarios the economic benefits and
costs of rerouting via an alternative route were determined
and balanced by means of travel time (saving in travel time
when using the alternative route in comparison to the normal
route inclusive waiting time in front of the blocked location)
and the distance covered (longer travel distance on the alternative route and related higher operating costs).
Depending upon the compliance rate of the rerouting recommendation an economical (net) benefit of 1.8 to 3.0 million € p.a. (incidents on A5) and 1.0 to 1.7 million € p.a. (incidents St. Gotthard) results for cross-border traffic.
Particularly the benefit of a detour with the St. Gotthard incidents might still be substantially larger, since also traffic is
concerned here that is not passing the German-Swiss border. A further deployment of the measures, e.g. by applying
the ISM approach, was postponed, since in the course of
reorganizing the competences between the national government and the cantons of Switzerland the transition of
construction, maintenance and operation of national roads
into the full responsibility of the national government had to
be arranged. In parallel, regional and national traffic management plans were developed in Switzerland. After operational implementation of these plans the extension in crossborder traffic is planned.
Contact:
Lothar Neumann
SSP Consult, Beratende Ingenieure GmbH
neumann@stgt.ssp-consult.de
March 2009