Neutralization techniques Car-based trip 1 Consumer behaviour 1 Deterrence theory 1 National parks 1 Norm-neutralization model 1 Peer-to-peer accommodation deviant behaviour 1 Pro-driving norms 1 Pro-environmental norms 1 Shadow hospitality 1 car use 1 environmental values 1 modeling 1 national park 1 sustainable development 1 tourist behavior 1