Dynamic allocation of roads is a possible approach for better overall performance in terms of traffic. This paper is focused on an in-depth presentation of an evaluation tool allowing study of real-time driver’s behavior related to road signs and marking understanding, as well as acceptability and usability in the context of dynamic road lane management. A general presentation of our study was given at ICALT 2014 in Tunisia [1] and in Elsevier’s Journal Transportation Research, Part E [2]. This paper is devoted to the evaluation tool.