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Author: North Carolina. Thoroughfare Planning Unit B.
Publisher:
ISBN:
Category : Lumberton (N.C.)
Languages : en
Pages :
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Author: North Carolina. Thoroughfare Planning Unit B.
Publisher:
ISBN:
Category : Lumberton (N.C.)
Languages : en
Pages :
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Author: North Carolina. Division of Highways. Planning and Research Branch
Publisher:
ISBN:
Category : High Point (N.C.)
Languages : en
Pages : 100
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Author: North Carolina. Thoroughfare Planning Unit
Publisher:
ISBN:
Category : High Point (N.C.)
Languages : en
Pages : 63
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Author: Yingge Xiong
Publisher: Purdue University Press
ISBN: 9781622602223
Category : Transportation
Languages : en
Pages : 56
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Book Description
The role of the REMI Policy Insight+ model in socioeconomic forecasting and economic impact analysis of transportation projects was assessed. The REMI PI+ model is consistent with the state of the practice in forecasting and impact analysis. REMI PI+, like its competitors, is vulnerable to the trends contained in the historical data it uses, especially recent trends. After the most recent periodic update in data, the performance of the REMI PI+ model improved, i.e., it produced long-term forecasts that were more credible. Zonal-level population and employment forecasts for direct input to the Indiana Statewide Travel Demand Model (ISTDM) can be achieved by applying disaggregation regression methods. IU's Center for Econometric Model Research (CEMR) model is also a sound forecasting model. Because of the knowledge of in-state economists, the CEMR-IBRC model could provide forecasts of the Indiana economy that reflect characteristics not known to out-of-state forecasters. The researchers also examined economic impact analysis models that are possible alternatives to REMI PI+. Acquiring a new economic impact analysis package does not seem necessary for INDOT, if REMI forecasts can be adjusted to (a) accommodate recent and reasonable expected trends in the Indiana economy, and (b) meet the geographic (TAZ) needs of the ISTDM. MCIBAS -- which is currently used by INDOT -- is a good hybrid system to use in the economic impacts analysis of transportation projects. IU's CEMR is capable of conducting economic impact analyses, with local knowledge of the Indiana economy, at a cost lower than REMI's. However, INDOT would have to decide whether these potential advantages justify changing the present relationship with REMI. In cases where the credibility of data, forecasts, and/or impact analyses needs to be verified, an INDOT version of an expert panel along the lines of Michigan's Transportation Technical Committee could be convened.
Author: David E. Boyce
Publisher: Edward Elgar Publishing
ISBN: 1784713597
Category : Business & Economics
Languages : en
Pages : 661
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Forecasting Urban Travel presents in a non-mathematical way the evolution of methods, models and theories underpinning travel forecasts and policy analysis, from the early urban transportation studies of the 1950s to current applications throughout the
Author: Transportation Research Board
Publisher: National Academies Press
ISBN: 0309179521
Category : Transportation
Languages : en
Pages : 156
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TRB Special Report 288, Metropolitan Travel Forecasting: Current Practice and Future Direction, examines metropolitan travel forecasting models that provide public officials with information to inform decisions on major transportation system investments and policies. The report explores what improvements may be needed to the models and how federal, state, and local agencies can achieve them. According to the committee that produced the report, travel forecasting models in current use are not adequate for many of today's necessary planning and regulatory uses.
Author: Shalini Dasigi
Publisher:
ISBN:
Category :
Languages : en
Pages : 71
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Travel networks are the backbone of an economy. The urban structure relies heavily on transport systems to grow and interact with the environment. They play an important role in shaping the land use of a region as mobility is instrumental in the process of location choice for residential and non-residential developments. However, land use changes are also governed by economic, governmental and environmental factors besides accessibility and hence, they indirectly affect transport systems too. Therefore, the ability to predict interactions between future land use and social economy for travel demand forecasting is of tremendous significance from the planning perspective. Among widely applied land use models, UrbanSim is gaining edge over others, being an open source system that models changes in spatial characteristics of the households and jobs in accordance with changing travel accessibilities and land prices. It allows for land use change simulation at varied geographic resolutions at parcel level and zone level. While the parcel-level version has been the most widely used in planning for its capability of featuring location-based socioeconomic factors at a disaggregate level, its intense data requirements also pose a big challenge or an extreme difficulty to validation efforts in practice. The relatively less-implemented zone-version of UrbanSim simulates household and employment changes at an aggregated Traffic Analysis Zone (TAZ) level with a relatively lesser data demand. However, the zone version does not account for the land use effect into the modeling approach directly. Instead, it uses only zoning data in one of the input tables in order to calculate development capacities in zones. But such zoning plans are only regulations to preserve land use and are not exactly representative of the actual land use at a location. The aim of this study was to overcome this weakness of the zone-version of UrbanSim with lack of focus on spatial effect of land use changes on social economy of each TAZ. This was achieved by linking future land use forecast data with UrbanSim input, while a travel model is used to generate traffic feedback in evaluating the spatial allocation of forecasted jobs and households. This proof-of-concept study was performed with the target at work describing an effort of integrated land use and transportation modeling for the Hamilton County of Ohio through year 2020 using the data sets that were provided mainly from the Ohio-Kentucky-Indiana Regional Council of Governments (OKI), in the Greater Cincinnati area, Ohio. The land use forecasting analysis was carried out with IDRISI Taiga module, a GIS and image processing model that could be validated with the land use datasets available at most Metropolitan Planning Organizations (MPOs)' databases. A VISUM travel model was used for travel accessibility inputs.
Author: Martin Gomm Richards
Publisher:
ISBN:
Category : Business & Economics
Languages : en
Pages : 180
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Author: United States. Federal Highway Administration. Socio-Economic Studies Division
Publisher:
ISBN:
Category : Transportation
Languages : en
Pages : 172
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This report presents the proceedings of a panel discussion of the use of economic and land use models in transportation planning. Participating in the panel discussion were Dr. Charles Floyd of the University of Georgia, Dr. Paul Weiner of the University of Connecticut, David Goettee of the Federal Highway Administration, and Dr. Martin Stein of the Maryland Department of Transportation. The panel discussion was attended by federal, state, and local transportation planners, and by University and other private consultants who were invited to participate in the discussion. Conclusions of the panel discussion were that 1. computerized models are useful tools for analyzing a broad range of transportation impacts; 2. trust in models may be fostered by developing a better understanding of the role of models in decision making and how these models can be used in problem solving; 3. many opportunities exist for cost-effectively adapting existing models to analyze new problems; 4. developing models requires close coordination between the model builder and the planners and decision makers to assure that the model is useful; 5. planners should consider changing patterns of economic activity in other regions to be sure their predictions are consistent with these patterns; and 6. an improved process for disseminating information about existing models is needed.
Author:
Publisher:
ISBN:
Category : Local transit
Languages : en
Pages : 48
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