A Maintenance Decision Support System (MDSS) used by MaineDOT aided maintenance crews by providing visual aids to track storms, recommending treatments, extending trend forecasts, and creating training opportunities.
Experience using the MDSS for a specific corridor in Maine in the winter season of 2006-2007
The methodology involved a careful tracking of each of 12 winter storm events, coupled with a reconstruction of the crew’s decision processes and treatment actions throughout each event. The documentation of the event reconstruction included the maintenance of logs by the Scarborough crew as well as post-event telephone interviews with the crew and their supervisor.
The evaluation focused on MaineDOT’s experience with the MDSS during the first year of use, in the winter season of 2006-2007. Although the evaluation did not identify quantitative benefits, it did find evidence that the MDSS provided qualitative benefits that are likely to become stronger as the maintenance crew gains more experience using the MDSS and the application is improved.
Among the benefits are the following:
- The MDSS provides enhanced notification capability of storm events with its Geographical Information System (GIS) radar and National Weather Service (NWS) platform, which enabled the system to track storm events across the state. The GIS platform generated visual representations of observational data obtained from Road Weather Information Systems/Environmental Sensor Stations (RWIS/ESS) and Automated Surface Observing Systems (ASOS) on road maps. The maintenance crews using the MDSS indicated the visual aids were useful to them in the essential task of using forecasts to determine treatment options.
- The MDSS consolidated a set of treatment recommendations that crews used in their decision-making for pavement treatment operations. The MDSS tailored road treatment recommendations on corridor-specific conditions that incorporate traffic levels, air and pavement temperatures, and the effects of prior treatments. The crews found that the recommendations from the MDSS added value to the existing mix of forecasts and observations. For example, the MDSS included new data on bridge frost potential, pavement-temperature trend forecasts, and wind and blowing snow potential.
- Although MaineDOT relied primarily on the crews to obtain information about conditions on the road, such as observations of pavement temperature, the MDSS extended crew observations with trend forecasts.
- By installing and using the MDSS for winter operations, MaineDOT created an opportunity to provide training for maintenance crews throughout the state, which had the effect of raising the skill level of all of MaineDOT maintenance crews.
Author: Chris Cluett (Battelle) and Jeffery Jenq (Battelle)
Published By: United States Department of Transportation ITS Joint Program Office, HOIT 1200 New Jersey Ave., SE Washington, DC 20590
Source Date: September, 2007
EDL Number: 14387URL: http://ntl.bts.gov/lib//jpodocs/repts_te//14387.htm
Average User Rating
Intelligent Transportation Systems > Road Weather Management > Response & Treatment > Mobile Winter Maintenance
Intelligent Transportation Systems > Road Weather Management > Surveillance, Monitoring, & Prediction > Pavement Conditions
Intelligent Transportation Systems > Road Weather Management > Surveillance, Monitoring, & Prediction > Atmospheric Conditions
Intelligent Transportation Systems > Road Weather Management > Information Dissemination
Intelligent Transportation Systems > Road Weather Management > Response & Treatment
Typical Deployment Locations
road weather vehicle tracking, winter maintenance vehicle, RWIS, ESS, Environmental Sensor Station, RWIS Station, road monitoring, weather station, environmental sensing station, Road Weather Management