Tex. Transportation Code § 541.304: TRAFFIC CONTROL.

In this subtitle:

(1) "Official traffic-control device" means a sign, signal, marking, or device that is:

(A) consistent with this subtitle;

(B) placed or erected by a public body or officer having jurisdiction; and

(C) used to regulate, warn, or guide traffic.

(2) "Railroad sign or signal" means a sign, signal, or device erected by a railroad, public body, or public officer to notify traffic of railroad tracks or an approaching railroad train.

(3) "Traffic-control signal" means a manual, electric, or mechanical device that alternately directs traffic to stop and to proceed.

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