Standard-profile of cross sections for all vehicle-types (VSS2000/469)
Overview
Background & policy context:
Research was needed in the field of determination of clearance of vehicle motion and of transverse clearance between various travelers on roads - with and without opposing traffic - depending on passing speed, lane width, shape and clearance of lateral obstacles, taking into account the dimensions of current vehicles.
Objectives:
The objective of the project is a development of scientific fundamentals for a possible revision of the geometric standard SN 640 201. Project is also aimed on determination of statistically secured dimensions of the speed dependent dimensioning elements of the standard profile of cross sections based on empirical data.
Methodology:
The examination procedure includes the following steps:
Phase 1: analysis of predictors, Requirements for measurement sections, evaluation of measurement sections, testing measurements, statistical surveys.
Phase 2: Measurement series roads outside cities, measurement series streets in town, measurement series outside the roadway area.
Phase 3: Determination of contexts, derivation of reference values, standard proposals, reporting.
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