Minimum number of signal heads required for one movement?

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Multiple Choice

Minimum number of signal heads required for one movement?

Explanation:
A movement is signaled for all drivers who follow that path through the intersection, and you need enough signal visibility for all those drivers. Using at least two signal heads for one movement ensures drivers in different lanes or slightly offset positions can see the same signal clearly, and it provides redundancy so a single head isn’t relied on for safety. So the minimum number of heads to signal one movement is two. More heads are added only when there are more lanes or visibility challenges, but two is the base requirement.

A movement is signaled for all drivers who follow that path through the intersection, and you need enough signal visibility for all those drivers. Using at least two signal heads for one movement ensures drivers in different lanes or slightly offset positions can see the same signal clearly, and it provides redundancy so a single head isn’t relied on for safety. So the minimum number of heads to signal one movement is two. More heads are added only when there are more lanes or visibility challenges, but two is the base requirement.

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