An Empirical Analysis of Socio-economic Impacts on Traffic Generation Rates in Metropolitan Areas

By Jacob Oluwoye.

Published by The Technology Collection

Format Price
Article: Print $US10.00
Article: Electronic $US5.00

Over the past two decades the population of Madison County, Alabama grew more than 185%, while the number of households grew by 251%. The variables collected in transportation planning studies are of a socio-economic nature and, therefore are interrelated and random. These socio-economic variables are very often not considered when applying multiple linear regressions to such data. The purpose of this paper is two-fold: to examine the determinants of traffic volume on the road network that influence traffic congestion; and to develop a predictive model of traffic flow along Madison county road network. Data per tract for the year 2000 was used for the development of the model. It is hypothesized that the socio-economic characteristics positively increase trip generation in terms of traffic volume on the road network. The empirical findings based on ordinary least square (OLS) reveal that an increase in population, employment, median household income, and number of household in Madison County census tracts positively related to traffic generation rates (traffic flow). However, the increase in population also contributes to more housing in the area and leads to more automotive traffic cars on the road. The paired t-test with a p-value of 0.354 suggests that there is no difference between the observed and the predicted. The paper concludes that the lack of a public transportation system in the area would result in more home-based-work and other trips, which would ultimately increase the traffic flow in all the census tracts. The decisions taken about trip purpose for a particular urban area will depend on the transportation issues important to that area.

Keywords: Traffic Flow, Socio-economics, Population, Employment, Household Income

The International Journal of Technology, Knowledge and Society, Volume 5, Issue 1, pp.115-126. Article: Print (Spiral Bound). Article: Electronic (PDF File; 1.386MB).

Prof. Jacob Oluwoye

Professor of Transportation and Environmental Health, Department of Community Planning and Urban Studies, School of Agricultural and Environmental Sciences, Alabama A&M University, Normal, Alabama, USA

Dr. Jacob O.Oluwoye, has been an active researcher in the Transportation, Public Health and Built Environment field since the late 1990’s and is currently researching on a topic entitled Gaseous emissions from transport Dr. Oluwoye has a wealth of experience in project management, research design, measurement, longitudinal studies, computer-assisted interviews, visual techniques in collecting behavioural social sciences data, data analysis, report writing and fiscal management. Dr.Oluwoye has a Diploma in Cartography&Remote sensing from Briar Cliff College, NY.USA. BS in Urban and Regional Planning from University of Wisconsin-Madison,USA., Master in City Planning from Howard University,Washington D.C., and Ph.D.in Traffic and Transportation Planning from the University of New South Wales, Australia.

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