Collect information about which traffic flow features.()
A. flow rate
B. vehicle speed
C. queue length
D. running time
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The specified number of highway lanes is()and()respectively
A. Class III Highway
B. Class I Highway
Class IV Highway
D. Class II Highway
Pour obtenir la valeur ajoutée brute, on fait ce calcul()
A. Valeur de la production – Consommations intermédiaires
B. Valeur de la production + Consommations intermédiaires
C. Valeur de la production×Consommations intermédiaires
D. Valeur de la production / Consommations intermédiaires
The following are passive safety measures.()
A. safety bodies
B. safety seats
C. seat belts
D. vehicle brake safety device
The methods of traffic information collection are()
A. GPS
B. coil
C. microwave / ultrasonic radar
D. video