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A Reminder About Advisory Speed Limits Your safety is NTTA’s primary concern when considering speed limits on its roadways, so we would like to take an opportunity to help clear up any confusion regarding black-and-white speed limit signs and the black-and-yellow advisory speed limit signs along the Dallas North Tollway (DNT).
As you may recall, speed limits were recently raised on both the DNT and the President George Bush Turnpike following a speed study to determine the appropriate speed limits in conjunction with the implementation of all-electronic toll collection along these corridors. Results of the study indicated that speed limits along these toll roads should be modified to better represent the speeds currently traveled by motorists. Lower advisory speed limits also were recommended where warranted.
The regulatory speed limit—posted on the black-and-white speed limit signs—is recommended for driving under favorable weather and roadway conditions. However, there are certain conditions that could warrant a driver to take caution and slow down—such as inclement weather (heavy rains, heavy fog, icy roads, etc.), accidents, or design of the roadway (such as limited line of sight). Under these types of conditions, the advisory speed limit—posted on the black-and-yellow speed limit signs—is recommended.
It’s also important to note that these signs are in no way meant to produce speed traps. The NTTA does not gain financially from any tickets or citations written on our system. Nor do we have any authority to issue or request the issuance of citations on our roads for any reason
You may also be curious why the speed limits at the far ends of the toll roads are posted at only 50‐55 mph. These are called transitional speed limits. The speed limits at the ends of the DNT and the east end of the Bush Turnpike drop to 50 or 55 mph as a transition to the slower speeds on the city streets. State law requires the speed limit at the end of a toll road or highway to be no more than 15 mph over speed limit on the city street.
Customer safety and mobility are paramount to the NTTA. As such, the NTTA works continuously to enhance safety throughout the System by:
• Employing the latest road construction technology to guarantee the highest level of construction and maintenance of NTTA toll roads;
• Providing technology solutions for customers for a safer driving experience;
• And monitoring, responding and communicating with drivers and first responders to increase roadway safety.
Click here for more information about speed limits on the NTTA System.
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