Tex. Transportation Code § 544.008: FLASHING SIGNALS.

(a) The operator of a vehicle facing a flashing red signal shall stop at a clearly marked stop line. In the absence of a stop line, the operator shall stop before entering the crosswalk on the near side of the intersection. In the absence of a crosswalk, the operator shall stop at the place nearest the intersecting roadway where the operator has a view of approaching traffic on the intersecting roadway. The right to proceed is subject to the rules applicable after stopping at a stop sign.

(b) The operator of a vehicle facing a flashing yellow signal may proceed through an intersection or past the signal only with caution.

(c) This section does not apply at a railroad crossing.

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