Transport linked to shopping and personal to-dos comes to 30% of total daily traffic. Shopping is the most important destination in cross-border traffic by far. In this case, and generally in cross-border traffic, the ratio of environment-friendly means of traffic is lower than in the case of commuter traffic. This is valid for both: inter-regional shopping transport to big shopping centres and travels for ‘local supply’. Demographic and economic changes, especially in the case of ‘‘local supply’, require solutions ensuring sustainable mobility and creating positive economic synergies between mobility offers and ‘local suppliers’. There is not enough experience available about the factors for choosing means of traffic and the inhabitants’ cross-border shopping-mobility demands in order to elaborate socially and ecologically sustainable mobility offers. The project SmashMob intends to fill this gap.