To park or to develop is always a key question for transit station area planning. Planners are interested in a hybrid option: siting park-and- ride (P&R) facilities at the periphery of development around transitway stations. However; the literature offers little evidence on how far a P&R lot can be located from transitways while maximizing ridership and revenue. Using a stated preference survey of 568 P&R users in the Twin Cities; this study conducted several experiments to illustrate their walking tolerance and identify built environment attributes that influence the walking distance. Walking distance is much more important than intersection safety; pedestrian infrastructure; and building appearance in affecting P&R users' choice. The average walking distance is three city blocks when the minimum walking distance is set as two blocks in the experiments. Intersection safety; pedestrian infrastructure; and building appearance help mitigate the disutility of walking distance. If all three characteristics are adequate; it seems that P&R users are willing to walk 1.8 blocks farther than their existing facilities. A further analysis shows that the effects of these four dimensions vary by transit type. The analysis of stated importance illustrates that when determining how far P&R users are willing to walk; they value snow clearance; street lighting; and intersection safety the most. In general; the quality of sidewalk network connecting transit stops and P&R facilities is the most important; followed by safety and security attributes associated with the walking environment. However; the aesthetic quality seems to be the least important for P&R users.
