00732306

Component

https://doi.org/10.3141/1551-16

http://scholar.google.com...sler&publication_year=1996

Because vehicle activities and the emissions associated with them can be correlated with specific points in time and space, the modeling capabilities of a geographic information system (GIS) are well suited to the modeling of mobile-source emissions. A GIS-based modeling approach can provide emissions estimates for both on-network and off-network vehicle activities on a modal basis (as a function of various vehicle operating modes that significantly affect vehicle emission rates). An entire metropolitan region can be modeled on a zone, link, and point basis. Vehicle subfleet composition can be tracked or estimated and combined with estimates of vehicle activity and characteristic operating modes to provide emissions estimates in a spatial and temporal context. Emissions from various modal activities are aggregated into grid cells to be used as input to an airshed model. Identifying spatial and temporal distributions of these activities adds to a greater understanding of emissions impacts. A research prototype of this modeling concept was produced to illustrate its capabilities and identify difficulties that must be addressed in the development of a fully functional model. The GIS-based displays and hard-copy maps that present the spatial variability of emissions levels help improve the communication of research findings to decision makers and the public. The effort being undertaken at Georgia Institute of Technology in conjunction with the Environmental Protection Agency to develop a next-generation modal emissions model within a GIS framework is described.

This paper appears in Transportation Research Record No. 1551, Innovative Transportation Data Management, Survey Methods, and Geographic Information Systems.

English

p. 123-132

1996

Transportation Research Record

0309059216

Figures (8) ; References (14)

Communication; Computer models; Geographic information systems; Information display systems; Information dissemination; Maps; Pollutants; Traffic distribution; Vehicle operations

Temporal distribution; Vehicle operating modes

Data and Information Technology; Highways

TRIS, TRB

Feb 6 1997 12:00AM

• ACCESS MANAGEMENT USING GEOGRAPHIC INFORMATION SYSTEMS AND TRAFFIC MANAGEMENT TOOLS IN PENNSYLVANIA
• ADVANCED TECHNIQUES FOR TRAVEL TIME DATA COLLECTION
• APPLICATION OF RELATIONAL DATA BASE STRUCTURE FOR MANAGING NETWORK INFORMATION
• ARCHITECTURE OF A CONGESTION MANAGEMENT SYSTEM FOR CONTROLLED-ACCESS FACILITIES
• DETERMINING DETAILED ORIGIN-DESTINATION AND TRAVEL TIME PATTERNS USING VIDEO AND MACHINE VISION LICENSE PLATE MATCHING
• DEVELOPMENT AND BENEFITS OF COMPUTER-AIDED TRAVEL TIME DATA COLLECTION
• GEOGRAPHIC INFORMATION SYSTEM-BASED TRANSPORTATION FORECAST MODEL FOR SMALL URBANIZED AREAS
• INCENTIVES AND RATES OF RETURN FOR TRAVEL SURVEYS
• INTEGRATING GEOGRAPHIC INFORMATION SYSTEMS FOR TRANSPORTATION AND AIR QUALITY MODELS FOR MICROSCALE ANALYSIS
• NONRESPONSE AND URBAN TRAVEL MODELS
• ORIGIN-DESTINATION SURVEY DATA DISSEMINATION IN METROPOLITAN CONTEXT: A MULTIMEDIA EXPERIENCE
• RETROSPECTIVE INTERVIEWING AND ITS APPLICATION IN STUDY OF RESIDENTIAL MOBILITY
• REVIEW OF METHODS FOR ESTIMATING VEHICLE MILES TRAVELED
• SAMPLE WEIGHTS FOR PUGET SOUND TRANSPORTATION PANEL USING STRATIFICATION ANCHORS IN PUBLIC USE MICRODATA SAMPLE AND PROBABILISTIC MODELS FOR SELF-SELECTION
• SMASH (SIMULATION MODEL OF ACTIVITY SCHEDULING HEURISTICS): SOME SIMULATIONS
• VEHICLE CLASSIFICATION USING ADVANCED TECHNOLOGIES