EFFECTS OF ALTERNATE LOADING SEQUENCES ON RESULTS FROM CHICAGO TRIP DISTRIBUTION AND ASSIGNMENT MODEL

USE OF ALTERNATE SEQUENCES HAS LITTLE EFFECT ON AREAWIDE TOTALS FOR TRAVEL ESTIMATES /AS APPLIED TO PITTSBURGH AREA TRANSPORTATION SURVEY DATA/. HOWEVER, WHEN SMALLER UNITS- ZONES, DISTRICTS, RINGS, SECTORS, LINKS, OR SPECIFIC MOVEMENTS- ARE CONSIDERED, THE DIFFERENCES CAN BE LARGE AND CAN EXERT A DEFINITE INFLUENCE ON DESIGN AND ECONOMIC ANALYSES. /AUTHOR/