Table 5-5b,,, Top Mexican Domestic Freight Area Pairs,,, by Mode: 1996,,, (Thousands of metric tons),,, ,,, Mode of transportation ,Total,Mode of transportation ,Total ,,, Air,, Road, " Mexico City, D.F. to Guadalajara, Jal. ",6," Mexico City, D.F. to Nuevo Laredo, Tamps. ","12,700" " Mexico City, D.F. to Tijuana, B.C. ",5," Mexico City, D.F. to Monterrey, N.L. ","7,400" " Mexico City, D.F. to Cancún, Q. Roo. ",4," Mexico City, D.F. to Guadalajara, Jal. ","6,100" " Guadalajara, Jal. to Mexico City, D.F. ",4," Mexico City, D.F. to Veracruz, Ver. ","4,700" " Mexico City, D.F. to Monterrey, N.L. ",4," Mexico City, D.F. to Toluca, Edo. de Mex. ","4,400" ,,, Pipeline,, Water transport, U ,U," Guerrero Negro, B.C.S. to Isla de Cedros, B.C. ","7,400" ,," Pajaritos, Ver. to Tuxpan, Ver. ","4,000" Rail,," Salina Cruz, Oax. to Guaymas, Son. ","2,300" " Nuevo Laredo, Tamps. to Monterrey, N.L. ","1,553"," Salina Cruz, Oax. to Manzanillo, Col. ","2,100" " Nuevo Laredo, Tamps. to Mexico City, D.F. ","1,271"," Salina Cruz, Oax. to Lázaro Cárdenas, Mich. ","1,300" " Veracruz, Ver. to Mexico City, D.F. ",803,, " Ciudad Sahagún, Hgo. to Mexico City, D.F. ",783, Intermodal, " Nuevo Laredo, Tamps. to Guadalajara, Jal. ",697, N ,N KEY: N = Data are nonexistent. U = Data are unavailable.,,, NOTES,,, Data represent one-way flows.,,, "Rail: Figures of 1993, based on allocation studies (see Appendix B).",,, "Road: Figures of 1994, from a survey of motor carrier vehicles on federal roads (see Appendix B).",,, Water transport: Data represent port to port pairs rather than metropolitan area pairs.,,, SOURCES,,, Air: Instituto Mexicano del Transporte based on special tabulation of the Secretaría de Comunicaciones y Transportes. Dirección,,, "General de Aeronáutica Civil. (Sanfandila, Qro.: 1999)." "Rail: Instituto Mexicano del Transporte. Evaluación Económica de Mejoras a la Infraestructura del Sistema Nacional Ferroviario," Publicación Técnica No. 82. Estimates included in this document are based on information from the Ferrocarriles Nacionales de "México. (Sanfandila, Qro.: 1996)." Road: Instituto Mexicano del Transporte. Special tabulation from Estudio de pesos y dimensiones de los vehculos de carga que "circulan en la red nacional de carreteras, 1994. (Sanfandila, Qro.: 1999)." "Water transport: Secretaría de Comunicaciones y Transportes. Coordinación General de Puertos y Marina Mercante. (Mexico City," D.F.: 1997).