Tex. Civil Practice and Remedies Code § 18.032: TRAFFIC CONTROL DEVICE PRESUMED TO BE LAWFUL.

(a) In a civil case, proof of the existence of a traffic control device on or alongside a public thoroughfare by a party is prima facie proof of all facts necessary to prove the proper and lawful installation of the device at that place, including proof of competent authority and an ordinance by a municipality or order by the commissioners court of a county.

(b) Proof of the existence of a one-way street sign is prima facie proof that the public thoroughfare on or alongside which the sign is placed was designated by proper and competent authority to be a one-way thoroughfare allowing traffic to go only in the direction indicated by the sign.

(c) In this section, "traffic control device" includes a control light, stop sign, and one-way street sign.

(d) Any party may rebut the prima facie proof established under this section.

Added by Acts 1995, 74th Leg., ch. 165, Sec. 2, eff. Sept. 1, 1995.