Affiliation: | aDepartments of Managerial Studies, Information & Decision Sciences, and Pharmacy Administration, University of Illinois at Chicago (MC 243), 601 South Morgan Street, Chicago, IL 60607-7123, USA;bDepartment of Transportation Planning Engineering, School of Civil Engineering, National Technical University of Athens, 5, Iroon Polytechniou Street, Zografou Campus, Athens 15773, Greece;cChicago Transit Authority, 567 W. Lake Street, Chicago, IL 60661, USA |