The article presents the criteria taken into account in determining the alignment of regional roads, with particular reference to bypasses of towns located along regional roads. To determine the criteria for the evaluation of variants and their hierarchy, the surveys were conducted using the Delphi method in two rounds, with electronic surveys (the CAWI method). Based on survey studies, an entry list of criteria was set up as a proposal for determining the alignment of regional roads.

The article presents the methodology for selecting the optimal variant of the road on a regional level. The suggested methodology is based on a combination of criteria value normalization method and the variant assessment method. Based on survey studies conducted using the Delphi method, a starting list of criteria was designed and the significance of the individual groups of main criteria and sub-criteria was determined. The final assessments of the analysed variants are calculated based on the aggregation of the marks obtained for the normalization and assessment methods. The methodology can be divided into six stages: determining the variants for analysis, selecting the variant assessment criteria, creating the assessment matrix, normalizing criteria value, using the variant assessment method, variant ranking. The methodology was tested on the examples of planning a bypass of Mazury and Księżyno towns as a part of Regional Road 678 in Poland.