Crowding perception survey in the Metro system, Santiago, Chile

This is the data from a stated preference survey made in Chile, to Metro users in the city of Santiago. The objective is to analyse their perception of crowding in public transport. If you use this database, please cite the following source: Tirachini, A., Hurtubia, R., Dekker, T., Daziano, R.A. (2017) Estimation of crowding discomfort in public transport: Results from Santiago de Chile. Transportation Research Part A 103, 311–326. https://doi.org/10.1016/j.tra.2017.06.008