Performance Based Standards for High Capacity Transports in Sweden

Purpose and goal

Purpose of the project was to investigate the applicability of PBS in Sweden and to propose a regulatory framework by identifying a PBS scheme suitable for Sweden, with attention to winter road conditions. Different aspects of a PBS scheme for Sweden has been studied during the project and knowledge for implementation of such a scheme has been gathered. More information is provided in the result section.

Expected results and effects

To fulfill the project´s goals, the correlations between heavy vehicles performance in winter and summer have been identified. The identified correlations can be used to assign required performance levels in a PBS scheme which ensure safe performance under both summer and winter conditions. A driving simultor study was performed, which confirmed the correlation between the measures and the drivers’ perception of the vehicle performance. Different assessment procedures were studied, resulting a beta version of a PBS tool, which can be further developed and used by the authorities.

Planned approach and implementation

Project started by reviewing the relevant literature and existing regulations in different countries. Based on the review results a candidate set of performance measures for further investigation, with respect to the Swedish conditions and icy roads, was identified. Correlation between HCT vehicles performance during winter and summer with respect to these measures have been investigated, using simulations and experiments on test track. Furthermore, different assessment procedures and required model complexity for evaluation of HCT vehicles performance have been studied.