What is the width threshold that activates the requirement for hazard lights for parked trucks?

The requirement for using hazard lights when parked applies specifically to trucks that exceed a width threshold of 80 inches. This regulation is in place to enhance safety on the road, particularly in scenarios where a wider vehicle might be more difficult for other drivers to see, especially in low-light conditions or when parked in an area that may obstruct traffic flow. Hazard lights serve as a warning to other road users, indicating that the vehicle is stationary and alerting them to navigate carefully around it.

Understanding this threshold is crucial for commercial vehicle operators to ensure compliance with Texas regulations. Vehicles below this width do not necessitate the activation of hazard lights when parked, which reflects the idea that narrower vehicles are generally less obstructive and easier for oncoming traffic to maneuver around without the added caution of hazard signals.