2Thompson RG,Takada K,Kobayakawa S.Understandingthe demand for access information [J], TransportationResearch Part C Emerging Technologies, 1998,6(4);231-245.
3Teng H, Falcocchio J C,Lapp F, et al. ParkingInformation and Technology for A Parking InformationSystem[C]. Transportation Research 巳oard 80th AnnualMeeting. 2001.
