Curve Warning System Warrant #1

ENTERPRISE

Warrants for the Installation and Use of

Technology Devices for Transportation Operations and Maintenance

PRELIMINARY WARRANTS QUESTIONNAIRE

CURVE WARNING SYSTEM WARRANT - 1:

Rural Two-Lane Highway Curves

Purpose: To provide additional warnings beyond static advisory curve warning signs to warn drivers of actions required to reduce risks associated with rural two lane curves.

To begin the process of determing if deployment is warranted at your location, please answer the following questions and click the submit button at the bottom of the page.

The preliminary warrants are entirely intended to serve agencies in the operations and maintenance device deployment decision making process. The warrants can also be used to validate existing device deployments.

To view decision criteria, click here.

Step 1: Describe the candidate Curve Warning System location.
Exceeded maximum number of characters.

Step 2: Answer the following Curve Warning System questions:
1. Is the radius of curvature less than 1,000 ft?	Yes No
2. Is the horizontal curve considered part of a visual trap (i.e. the beginning of the horizontal curve immediately follows a vertical curve and is hidden from the line of sight, or where the main road curves but a minor road (and sometimes utility lines) continue on the tangent)?	Yes No
3. Is there an observed pattern of vehicles entering the curve at speeds that are faster than safe speeds? For example, the 85th percentile speed exceeds the recommended or posted speed limit?	Yes No
4. Are there typically two or more crashes on the curve each year? Note: if there has been at least one crash in the last year on the horizontal curve, a lower technology solution may be appropriate.	Yes No
5. Is the highway a 2-lane highway (1 lane each direction)?	Yes No
6. Is the speed limit on the highway 55 MPH or greater?	Yes No
7. Is the speed differential (difference between the regulatory speed limit and the advisory speed limit) 25 MPH or greater?	Yes No

Step 3: Answer the following survey questions (optional):
Is the device already deployed?	Yes No
Was this form easy to fill out?	Yes No
Did you have to contact others within your organization to answer the questions?	Yes No
Were the questions detailed enough?	Yes No
What suggestions do you have to improve the questionnaire? Exceeded maximum number of characters.

Step 4: Include User Information (optional):
E-mail address	Invalid format.
Name
Agency
Phone
May we contact you?	Yes No

Step 5: Click Submit.

Go back to Curve Warning System Warrants

ENTERPRISE Warrants Project