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A stop-&-go (S&G) wave phenomenon refers to the traffic situation where vehicles experience cyclic patterns of deceleration followed by acceleration. Driving in these conditions is a nuisance as drivers need to be more focussed, which leads to an increase in the level of frustration and mental stress. This study aims at evaluating the effect of the number of S&Gs experienced on the route choice behaviour of drivers. An online stated choice experiment was conducted on a sample of regular car drivers residing in Sydney and its neighbouring suburbs. The collected data is analysed using a latent class choice modelling framework which provides characteristics and choice preferences of subgroups of individuals, thus making it attractive to policy makers. Results show that nearly three-quarters of the sample have a negative and significant disutility towards the number of S&Gs experienced. The outcomes from this …