3Br ian L.Smith,Zhang Han,Michael D Fontane,et al.Wireless location technology-based Traffic monitoring:critical assessmet and evaluation of an early-generation system[J].Journal of Transportation Engineering,2004,130(5):576 - 584
4Zhao Yilin.Mobile phone location determination and its impact on intelligent transportati systems[J].IEEE Transactions on lntelligent Transportation Systems,2000,1 (1):55 - 64
