Project
Investigation of the infiltration of road runoff water through the road shoulder at an existing site (VSS2001/202)
Funding origin:
Switzerland
STRIA Roadmaps:
Network and traffic management systems (NTM)
Transport mode:
Road
Transport sectors:
Passenger transport
Freight transport
Project website:
Duration:
Start date: 01/06/2002,
End date: 01/06/2006
Status: Finished
Funding details:
Overview
Background & policy context:
Based on different investigations in Switzerland and other countries, it can be concluded that a great extent of the pollutants from road surfaces are deposited along the road sides by spraying and air drift (on roads with heavy traffic up to 80%). Consequently, if topographically feasible, the discharge of road runoff over the shoulder has been proposed. There is not much information available on permissible pollutant loads and mass transfer and transport phenomena in road shoulders and the concomitant risks for soil and groundwater pollution.
Objectives:
The research is aiming at the following goals:
- Determination of the accumulation rates of various pollutants in the road shoulder as a function of the distance from the road side,
- Determination of the pollutant content in plants,
- Qualitative and quantitative influence of the infiltration water on groundwater quality,
- The research will serve as a basis for the renewal of the SN 640 354/ Discharge of road runoff over the shoulder.
Methodology:
The following stages are provided:
- Collating the specific literature, publications, guidelines, other research, particularly of that of EPFL Dr. Parriaux "Retention of Polluants des eaux de Chaussés selan de systems" infiltration on the benches.
- Installation of the measuring equipment (slope lysimeter), measurements and laboratory analyses; Analysis of results and conclusions;
- Interim Reports and coordination sessions;
- Final Report;
- Proposals for the standard 640 354 / drainage over the banquet.
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