So basically, if I can reach over and touch your mirror, you are passing too closely.
In a few places, they've put up reminder signs:
They've codified details of how a motor vehicle driver must behave:
(Ord. No. 2011-046, § 1, 4-5-11)
(e) An operator of a motor vehicle passing a vulnerable road user operating on a highway or street shall:
. (1) Move to the left lane if the highway has two (2) or more marked lanes running in the same direction; or
. (2) Pass the vulnerable road user at a safe distance.
(f) For the purpose of subsection (e)(2), when road conditions allow, safe distance is at least:
. (1) Three (3) feet if the operator's vehicle is a passenger car or light truck; or
. (2) Six (6) feet if the operator's vehicle is a truck, other than a light truck, or a commercial motor vehicle as defined by the V.T.C.A. Transportation Code § 522.003.
(g) An operator of a motor vehicle that is making a left turn or a U-turn at an intersection, including an intersection with an alley or private road or driveway, shall yield the right-of-way to a vulnerable road user in all circumstances in which the operator would be required to yield right-of-way pursuant to the traffic law.
(h) An operator of a motor vehicle may not overtake a vulnerable road user traveling in the same direction and subsequently make a right-hand turn in front of the vulnerable road user unless the operator is safely clear of the vulnerable road user in light of all conditions impacting safety.
(i) An operator of a motor vehicle may not maneuver the vehicle in a manner that:
. (1) Is intended to intimidate or harass a vulnerable road user; or
. (2) Places the vulnerable road user at risk of unreasonable imminent bodily injury.
(j) An operator of a motor vehicle shall exercise due care to avoid colliding with any vulnerable road user on a roadway including public rights-of-way.