01015534

Component

https://doi.org/10.3141/1920-03

http://scholar.google.com...rtin&publication_year=2005

This paper presents the results of a study that compared drivers’ assessments of the performance of urban streets with objective measures of performance, including level of service (LOS). The purpose of the study was to test the ability of LOS to predict drivers’ perceptions of service quality. Seventy-seven automobile drivers rated the service quality of half-mile segments of urban streets as depicted on videotaped scenes from the driver’s perspective. Drivers rated 12 to 15 video segments on a six-point scale from very satisfactory to very unsatisfactory. After rating all segments, the drivers selected and ranked from a list of 36 factors the three factors that they considered the most important to quality. The results show that the mean driver rating had statistically significant correlations with operational and design characteristics and aesthetics, including the following variables: travel time, average travel speed, number of stops, delay, number of signals, lane width, the presence of trees, and the quality of the landscaping. LOS, calculated by the "Highway Capacity Manual" methodology, predicted 35% of the variance in mean driver rating. This finding suggests that LOS does not completely represent drivers’ assessments of performance because drivers perceive the quality of urban street segments in several dimensions, including travel efficiency, sense of safety, and aesthetics.

01015530

English

pp 25-31

2005

Transportation Research Record: Journal of the Transportation Research Board

0309093937

Print

References (11) ; Tables (7)

Aesthetics; Drivers; Evaluation and assessment; Landscape design; Level of service; Operating speed; Performance; Quality of service; Ratings; Stopping; Streets; Traffic delays; Traffic safety; Traffic signals; Travel time; Trees; Variance; Videotapes

Highway Capacity Manual

Lane width

Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure

TRIS, TRB, ATRI

Jan 17 2006 10:00AM

• Arrival-Based Uniform Delay Model for Oversaturated Signalized Intersections with Poor Progression
• Calibrating and Validating Deterministic Traffic Models: Application to "Highway Capacity Manual" Control Delay at Signalized Intersections
• Capacity at Intersections Without Traffic Signals
• Comparison of Methods for Sensitivity and Uncertainty Analysis of Signalized Intersections Analyzed with the "Highway Capacity Manual"
• Effect of Lane Width on Speeds of Cars and Heavy Vehicles in Work Zones
• Effect of Pedestrian-Related Factors on Intersection Performance
• Effects of Parameter Distributions and Correlations on Uncertainty Analysis of "Highway Capacity Manual" Delay Model for Signalized Intersections
• Effects of U-Turns on Capacities of Signalized Intersections
• Headway Compression During Queue Discharge at Signalized Intersections
• Interchange Critical Movement Analysis for Planning and Preliminary Design Applications
• Methodology for Evaluating the Operational Performance of Interchange Ramp Terminals
• Modeling of Delay Induced by Downstream Traffic Disturbances at Signalized Intersections
• Variability of Peak Hour Factor at Intersections
• Video Simulation of Pedestrian Crossings at Signalized Intersections