01049584

Component

https://doi.org/10.3141/2027-02

http://scholar.google.com...ucha&publication_year=2007

Concepts of transportation service quality are related to efforts to evaluate driving conditions and the level of satisfaction that transportation users perceive. However, few data have been gathered from actual users about perceived service quality. A new method is developed for the evaluation of transportation service quality using a fuzzy aggregation and a cultural consensus analysis technique. After a literature review was conducted, six analysis criteria that showed promise as relevant indicators were selected to apply the developed method to assess the service quality of signalized intersections. With the use of a fuzzy weighted-average technique on six criteria, individual perceptions regarding the service quality of signalized intersections were evaluated. Then, the weight of an individual’s perceptions, measured with consensus analysis, was applied to estimate a more realistic, aggregated overall service quality rating of a signalized intersection. Through the consensus analysis, the competence scores—which indicate how “correct” and relatively important each individual’s response is—were estimated and used for each participant. Experimental results indicate that user perceptions of transportation service quality fall in a narrow measurable range of the scale constructed to perform this measurement. In other words, users’ perceptions are not easily distinguished and vary greatly by individual. Therefore, user-perceived service quality ratings do not correspond to the level of service evaluated using the "Highway Capacity Manual" method. Ratings of user-perceived service quality of signalized intersections evaluated by using the new fuzzy aggregation method are in better agreement with the actual perceptions that people hold than those obtained by using a more conventional method.

01089135

English

pp 9-18

2007

Transportation Research Record: Journal of the Transportation Research Board

9780309104548

Print

Figures (5) ; References (25) ; Tables (5)

Level of service; Quality of service; Signalized intersections

Consensus analysis; Fuzzy aggregation; User perceptions

Highways; Operations and Traffic Management; I71: Traffic Theory; I73: Traffic Control

TRIS, TRB, ATRI

Feb 8 2007 6:24PM

• Arrival-Based Uniform Delay Model for Exclusive Protected-Permitted Left-Turn Lane at Signalized Intersections
• Assessing the Impact of Turning Vehicles on Pedestrian Level of Service at Signalized Intersections: A New Perspective
• Driver Behavior Model of Saturation Flow
• Effect of Site and Population Characteristics on Freeway Bottleneck Capacity
• Errors in Analyses for Capacity and Timing Design of Signalized Intersections in Absence of Steady Queue Discharge Rates
• Estimating Truck Equivalencies for Freeway Sections
• Field Measurement of Approach Delay at Signalized Intersections Using Point Data
• Headway Acceptance Characteristics of U-Turning Vehicles at Unsignalized Intersections
• Implementing the Concept of Reliability for Highway Capacity Analysis
• Probabilistic Analysis of "Highway Capacity Manual" Models: Case Study of a Signalized Intersection
• Relationship of Lane Width to Saturation Flow Rate on Urban and Suburban Signalized Intersection Approaches
• Total Approach Capacity at Signalized Intersections with Shared and Short Lanes: Generalized Model Based on a Simulation Study
• Travel Time Measurement Using Toll Infrastructure