Occasionally, traffic signals are installed at intersections of private driveways with state routes. A private driveway intersecting a state route requires a driveway permit. The issuance of a driveway permit should be contingent on TxDOT’s approval of an impact study of the area to be developed. This impact study should include a traffic signal study. If TxDOT determines that the proposed development will create enough traffic to cause undue traffic delays and hazards, then the district notifies the private organization that a traffic signal must be installed before the driveway is opened to the public.

If a traffic signal is authorized at a private driveway, the private driveway should have sufficient channelization, acceleration and deceleration lanes, or pavement markings at the intersection.

Funding.

TxDOT does not fund the installation of traffic signals for private driveways intersecting state routes. The private organization must fund the installation of the traffic signal through a third party agreement.