Abstract
Recently, the accident rate in Lithuania has been among the highest in Europe. The experience of implementing a Gravel Roads Paving Program (GRPP) shows that accident rates have been increasing on the reconstructed road sections. This enables to make an assumption that design solutions taken on the reconstructed gravel roads may be not suitable in terms of traffic safety, since, currently, attempts are made to design the least possible deviation of the project road axis from the existing road axis. The paper evaluates the quality of design solutions in terms of traffic safety in the objects of GRPP through the use of the design method applied in West European countries, which is based on safety criteria and enables to evaluate traffic safety not only on existing but on the designed 2-lane suburban roads. The paper investigates the road plan solutions in the objects of the GRPP. Dangerous road sections on reconstructed/being reconstructed sections were identified, and analysis of the real or predictable accident rates on these sections was carried out.
Highlights
Safety is one of categories evaluating transport projects (Su et al 2006)
The accident rate in Lithuania has been among the highest ones in Europe, and the implementation of Gravel Roads Paving Programme (Programme) shows that the accident rates on the reconstructed sections have been increasing
This enables to make an assumption that design solutions on the gravel roads under reconstruction may be not suitable in terms of traffic safety, since, currently, attempts are made to design the min possible deviation of the project road axis from the existing road axis
Summary
The accident rate in Lithuania has been among the highest ones in Europe, and the implementation of Gravel Roads Paving Programme (Programme) shows that the accident rates on the reconstructed sections have been increasing. This enables to make an assumption that design solutions on the gravel roads under reconstruction may be not suitable in terms of traffic safety, since, currently, attempts are made to design the min possible deviation of the project road axis from the existing road axis. The methodology was based on the criteria, which take traffic safety on the existing or designed two traffic lanes on suburbian roads into account.
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