01518308

Component

https://doi.org/10.3141/2442-07

In this study, the differences in travel time variability patterns between urban roads and highways were analyzed. For urban roads, a GPS data set that included all taxi trips in New York City was used. For highways, automatic vehicle location data from the New Jersey Turnpike were used. The turnpike was divided into two sections, urban and suburban highway, according to urbanization level, time-of-day demands, and physical roadway features. The analysis not only compared travel time patterns for highways and urban roads but also investigated travel time characteristics along the same highway facility. First, the temporal variations of travel times on both facility types were calculated and compared. Second, the travel time distributions were extracted for various time periods and compared visually to determine the distributional patterns. Finally, the relationship between the average travel time and variability was investigated. Not only did travel time patterns differ between urban roads and highways, but major differences in travel time characteristics could be observed along the same highway. Higher travel times corresponded to lower reliability on highways yet corresponded to higher reliability on urban roads. Overall, the findings suggest that attributing differences in travel time variability patterns to facility type may be an oversimplification of the phenomenon.

01552762

14-0768

English

pp 53–61

2014

Transportation Research Record: Journal of the Transportation Research Board

9780309295321

Print

Figures (7) ; References (21)

Distributions (Statistics); Expressways; Periods of the day; Travel time; Urban highways

New Jersey Turnpike

Temporal variability

New York (New York)

Data and Information Technology; Highways; Operations and Traffic Management; I72: Traffic and Transport Planning

TRIS, TRB, ATRI

Jan 27 2014 2:20PM

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