Implementation and evaluation of the Sacramento Regional Transportation Management Center Weather Alert Notification System.
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Implementation and evaluation of the Sacramento Regional Transportation Management Center Weather Alert Notification System.

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    Evaluation Report, 10/9/08 ¿6/30/10
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  • Abstract:
    This report presents the results of an evaluation of Caltrans District 3 Regional Transportation Management Center’s (RTMC)

    implementation of a weather alert notification system. This alert system was selected for implementation from among several weather

    information integration strategies identified by the RTMC through a self-evaluation process supported by the FHWA Road Weather

    Management Program. The weather types of particular interest to RTMC operations are fog, wind and frost. These weather conditions

    have potential consequences for the operation of their transportation system and the safety of the traveling public. The RTMC desired to

    more effectively and proactively manage their system and keep their traveling public well informed when faced with these weather

    conditions. They implemented a system that automatically generates adverse weather warnings and alerts to the RTMC operators to help

    them make more timely and effective decisions regarding posting advisory messages to the public on electronic roadside message signs.

    Quantitative and qualitative data were collected to support evaluation measures in both the baseline and post-deployment periods. The

    evaluation focused on several significant weather events (fog, wind and frost), documenting the alerts, the progress of the event, and

    operator messaging responses to the event. It identified a need for operator training and for clear procedures to guide the use of the alert

    system, and these improvements were implemented on an on-going basis during the course of the evaluation over the 2009-2010 winter

    period. Management intends to fine tune their alert system, including adding additional sensors when their budgets will allow that, based

    on the evaluation findings, to further enhance the alert system’s effectiveness.

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