Which of the following is a guideline for selecting barriers based on roadway characteristics?

Prepare for the ATSSA Traffic Control Supervisor Test. Study with flashcards and multiple-choice questions, with hints and detailed explanations for each question. Ace your exam!

Traffic speed is a critical factor when selecting barriers based on roadway characteristics because it directly influences the potential severity of vehicle impacts and the effectiveness of the barrier in protecting both the vehicles and the roadside. Higher traffic speeds increase the energy of a collision, making it essential to choose barriers that can absorb impact effectively and minimize injury or damage.

Moreover, different types of barriers have varying levels of effectiveness depending on the speed at which vehicles approach them. For instance, at higher speeds, rigid barriers may be necessary to withstand the impact, while lower-speed applications might allow for the use of more flexible systems that can redirect a vehicle back onto the roadway.

Considering roadway characteristics, including traffic speed, ensures that the selected barrier meets safety standards and performs adequately to mitigate hazards in a particular environment. This approach contributes to improved traffic safety and the overall effectiveness of traffic control measures. Other factors like road angle, weather conditions, and time of day, while important in their own contexts, do not specifically pertain to the primary guideline of barrier selection based on the critical parameter of traffic speed.

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