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Difficulty: EasySpace Ahead and Following Distance

Under normal driving conditions, the standard commercial driving formula for safe space ahead requires a minimum following distance of at least one second for each 10 feet10\text{ feet} of vehicle length when traveling at speeds below 40 mph40\text{ mph}.

Answer: Answer

Answer

True
The statement accurately reflects the standard following distance formula found in commercial driver training: allow at least one second for each 10 feet10\text{ feet} of vehicle length at speeds under 40 mph40\text{ mph}.

Step-by-Step Solution

1
Identify the vehicle speed threshold referenced in the space management rule
The speed is specified as below 40 mph40\text{ mph}
The baseline CDL following distance rule applies to speeds below 40 mph40\text{ mph} without adding the additional high-speed safety second
2
Compare the stated ratio against the standard CDL following distance formula
The ratio of one second per 10 feet10\text{ feet} of vehicle length matches the official standard exactly
This formula provides adequate perception, reaction, and stopping cushion for heavy vehicles under standard operating conditions

Key Concept

CDL baseline following distance formula for speeds below 40 mph
Estimated Time:45s
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Topics

Space Ahead and Following Distance

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