Differentiating the Influence of Accessibility, Attitudes, and Demographics on Stop Participation and Frequency during the Evening Commute

Cao, X.(J.); Mokhtarian, P.L.; Handy, S.L., 2008, in Environment and Planning B: Planning and Design

doi:10.1068/b32056
Location Northern California, USA
Population General
Sample size 1256
Factor analysis type principal components, Oblique rotation
Stepwise regression no
Removal of insignificant variables yes
Reviewed by LCM

Abstract

Understanding the stop-making behavior of commuters is important for planners and policy makers in their efforts to improve travel demand models and to develop transportation demand management strategies. Previous studies have identified various determinants of commuters' stop generation. However, the way in which accessibility affects stop-making decisions is not clear. Further, few studies have considered the impacts of attitudes and predispositions, which extensively influence travel behavior. Using 1256 commuters in Northern California, this study investigates the influences of accessibility and attitudes on evening commute stop-making behavior. Based on a bivariate selection model, we found that the propensity of workers to make stops is dependent on their attitudes, work-related attributes, neighborhood accessibility, and sociodemographic characteristics, whereas the frequency of trip chaining is primarily determined by sociodemographic characteristics. Accordingly, if we offer commuters opportunities to stop through land-use and transportation policies, they may tend to do so, but the intensity of chaining behavior depends on household needs, the individual's role in the household, and personal time constraints.

Factors

Models

Dependent variable Stops made on commute trip home
Model type Bivariate selection
Sample size 1181.0
R2 0.053 (outcome equation)
Adjusted R2
Pseudo R2 (nan) 0.108 (participation equation)
AIC nan
BIC nan
Log-likelihood at zero nan
Log-likelihood at constants nan
Log-likelihood at convergence nan
Outcome (chaining frequency) equation
Variable Coefficient p-value
Constant 0.605 <0.001
Female 0.042 0.041
Presence of children (</= 12 years) in HH 0.046 0.049
Full-time worker -0.123 <0.001
Carpooling commute mode share 0.106 0.006
Inverse Mills ratio -0.126 0.028
Stop participation equation
Variable Coefficient p-value
Constant 0.728 <0.001
Female 0.349 <0.001
Number of adults in HH -0.207 <0.001
Limitation on driving on the freeway -0.738 0.086
Walk/bicycle commute mode share -0.75 <0.001
Transit commute mode share -1.209 <0.001
Solo-driving commute mode share 0.343 0.011
Pro-travel 0.114 0.007
Travel minimizing 0.094 0.035
Accessibility 0.111 0.026
Number of eating-out businesses within 400 m 0.069 0.096
Number of video-rental businesses within 1600 m 0.093 0.012

The Attitudes and Travel Database is produced with support from the Center for Teaching Old Models New Tricks at Arizona State University, a University Transportation Center sponsored by the US Department of Transportation through Grant No. 69A3551747116.

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