Box A: Names and Descriptions of Variables Used in Final Model, Variable name,Variable description OPID,Operator ID number SEGID,Segment ID number MACROSYS,Segment length from contractor computations SEGLEN,Segment length reported by ferry operator AVGTIME,Average one-way travel time reported by operator MONTHS,Number of months ferry operates per year PASSENGERS,Number of passengers per year CONF,Operator requested passenger data be kept confidential BOATS,Total number of vessels operator runs (not per segment) AVGCAP,Average capacity of vessels METRO,At least one of the two segment terminals is in a core based statistical area (CBSA) NPS,At least one of the two segment terminals serves a national park AUTO,At least one of the two segment terminals has auto access PARKING,At least one of the two segment terminals has parking TRANSIT,At least one of the two segment terminals has access to public transit bus INTERCITY,At least one of the two segment terminals has access to intercity bus LHRAIL,At least one of the two segment terminals has access to light or heavy transit rail AMTRAK,At least one of the two segment terminals has access to Amtrak rail NEWENGLAND,One of the two segment terminals is in New England Census Division MIDATLANTIC,One of the two segment terminals is in Mid Atlantic Census Division ENCENTRAL,One of the two segment terminals is in East North Central Census Division WNCENTRAL,One of the two segment terminals is in West North Central Census Division WSCENTRAL,One of the two segment terminals is in West South Central Census Division ESCENTRAL,One of the two segment terminals is in East South Central Census Division SATLANTIC,One of the two segment terminals is in South Atlantic Census Division MOUNTAIN,One of the two segment terminals is in Mountain Census Division PACIFIC,One of the two segment terminals is in Pacific Census Division "SOURCE: Variables used in this model were selected from the U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics, National Census of Ferry Operators, 2006, or else derived from variables in this file.",