What is the major difficulty in establishing human surveillance in freeway management systems ?
- ADifficulty in integrating electronic detection with human surveillance
- BInfrastructure for providing video to the location of the human operatorCorrect
- CHuman operators have superior judgment, but they may lose attention
- DLack of qualified human operators
Solution
Concept
Surveillance in freeway management
Step-by-step solution
1. Human surveillance uses closed-circuit television watched by operators. 2. The major difficulty is the infrastructure needed to bring the video to the operator's location.
Explanation
Surveillance requires cameras, communication links and a control centre, which is costly to set up.
Why the other options are wrong
The other options describe secondary issues.
Shortcut
CCTV link to the control centre.
Correct answer: B) Infrastructure for providing video to the location of the human operator