In Phoenix, Arizona, an evaluation of traveler information provided on cable television found that 29 percent of surveyed respondents thought the traffic channel was useful.
Evaluation results for ATIS included in the report present an assessment of customer satisfaction with the publicly operated Trailmaster web site and the Traffic Check cable TV traffic information service. Both the web site and television channel provided information on travel conditions on Phoenix area roadways by integrating data from the freeway management system and the Arizona Department of Transportation (ADOT) Roadway Closure and Restriction System.
Analysis of web site usage statistics indicated that the number of visits to the traveler information web site increased steadily during the evaluation period at a rate of 50 percent per year; evaluators expected this trend to continue. Overall, usage levels for the Phoenix web site were significantly lower than those experienced in Seattle, where traffic congestion is a more significant problem (as reported in the Seattle MMDI report). Two focus group studies revealed Phoenix area travelers felt that congestion levels were not high enough to warrant frequent use of the site. Users did find the site helpful in assessing delays due to construction. Participants felt that the addition of congestion information for arterial roadways would make the site more useful.
A telephone survey was conducted to assess the impact of the traveler information cable TV channel implemented through the MMDI. 35, 000 cable subscribers in Tempe, Arizona received the Traffic Check television service during the evaluation period. Seven percent of these subscribers responded to a postcard survey inquiring about their use of the traffic information channel. Phone interviews were conducted with 723 subscribers, approximately half of whom had used the Traffic Check channel. Due to the small sample size, the authors of the evaluation report caution against extrapolating the survey results to a larger population.
The phone interviews yielded several interesting results regarding the usage and customer satisfaction with Traffic Check. Of the participants who commute regularly, 93 percent report listening to traffic radio broadcasts for traveler information, 77 percent used traffic reports on local television, 75 percent use dynamic message signs (DMS), and 48 percent report using Traffic Check. Survey results also indicate that pre-trip information in general may be less useful than en-route information, as shown by the percentage of respondents who felt that various traveler information services were useful.
Traveler Information Service
Respondents Rating Service "Useful"
Encountering congestion first-hand
Dynamic Message Signs
Highway Advisory Radio
Traffic Check TV
Science Applications International Corporation. Cross Jurisdictional Signal Coordination in Phoenix & Seattle: Removing Barriers to Seamless Arterial Travel. U.S. Department of Transportation. Washington, DC: 2000.
Author: C. Zimmerman (Battelle), et. al.
Published By: Federal Highway Administration, U.S. DOT
Prepared by Battelle for the U.S. DOT
Source Date: April 2000
EDL Number: 12743
Other Reference Number: Report No. FHWA-OP-00-015URL: http://ntl.bts.gov/lib/jpodocs/repts_te/12743.pdf
Average User Rating
Related Metropolitan Integration Links
Typical Deployment Locations
Coordinated Signal Control, pre-timed, pretimed, time-of-day signal timing, fixed-time