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Planning Guidance for the Installation and Use of Technology Devices for Transportation Operations and Maintenance

ENTERPRISE Transportation Pooled Fund Study

HAR Guideline 4 - Special Events

Purpose: To notify travelers about special events (either prior to the event start date or during the event), alerting travelers to the impacts of these events on traffic, and to guide event attendees to the event.

Engineering judgment should be used to assess potential implications that may result from installation of HAR. This planning guideline does not mandate the use of HAR.

1. The temporary event is expected to attract more than 600 vehicles in any one hour period.

AND

2a. There is a route of travel for event attendees that creates considerably less impact on traffic than other approaches (i.e. if event attendees can be directed to this route it will minimize impacts).

OR

2b. There is an optional route for non-event traffic to avoid the impacts of this event.

AND

3. The message(s) that need to be relayed to the travelers are too complex to convey on a portable changeable or static sign (better relayed through spoken reports).