Experimental road signs in a simulated environment research programme – experiment procedures and assumptionsMikołaj Kruszewski, Monika Ucińska, Ewa Smoczyńska, Paweł Budziszewski and Andrzej GrabowskiMATEC Web Conf., 122 (2017) 04003DOI: https://doi.org/10.1051/matecconf/201712204003