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*FHWA, 1997, FED REG
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*FHWA, 1997, FHWAPL97007 US DEP T
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*FHWA, 1999, TOLL FAC US
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*INT BRIDG TUNN TU, 1998, 1998 EL TOLL TRAFF M
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*INT BRIDG TUNN TU, 1996, 1996 TOLL IND STAT
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SCHAUFFLER AE, 1997, NATL COOPERATIVE HIG, V240
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*US DEP TRANSP, 1993, MAN UN TRAFF CONTR D
[8]
1997, FED REG 0106, V62