DARS_porocilo 2007 ANG.indd

Environmental Management
Environmental Protection
Noise
In 2007, noise barriers continued to be erected simultaneously with the construction of new roads, while
some were erected alongside older motorway sections that had been constructed without noise barriers.
Most of the additional noise barriers were erected in the vicinity of Ljubljana and Maribor.
Protection of Waters
In 2007 the Company carried out all maintenance works required to prevent any negative impacts on
ground water. No incidences of water pollution occurred in 2007. Facilities were cleaned (oil containment
devices, reservoirs). Some minor traffic accidents occurred in which the possibility of damage due to
hazardous substances was present, but was prevented in due time.
Gas Emissions
Gas emissions are not critical and are monitored by automatically controlled tunnel ventilation systems.
Environmental Impacts of Road Gritting
In order to prevent slippery roads and ensure good road conditions in winter, roads are gritted in winter
using various gritting materials. Theoretically, these materials affect the ground, the quality of surface
and ground water, flora, fauna, humans, facilities (road lanes, bridges, viaducts and buildings), as well as
vehicles. Studies conducted in the past have shown that road salting has a small impact on ground water,
as the salt is diluted by a factor of 100 to 500.
The consumption of gritting materials in 2007 was substantially lower than in the previous year.
46 ANNUAL REPORT DARS d.d. 2007 BUSINESS REPORT