3rd Numerical of Traffic Signals - Traffic Engineering - Transportation Engineering - I

TL;DR

Driver claims improper amber time creating a dilemma zone, but calculations prove claim correct.

Transcript

hello students today we are going to solve third numerical of traffic signal question is given as a driver is traveling at a speed of 50 kilometer per hour wanted to cross an intersection he claimed that duration of amber display is improper and consequently a dilemma zone is created using the given data check the driver claim was correct or not if... Read More

Key Insights

• 🖐️ Coefficient of friction plays a crucial role in determining stopping distances.
• ⌛ Reaction time and vehicle dimensions impact the required amber time for safe intersection crossing.
• 🚥 Calculations provide a quantitative basis for evaluating claims about traffic signal timing.
• 🚥 Ensuring proper amber time is essential to prevent dilemma zones and ensure traffic safety.
• 🤩 Vehicle speed and acceleration are key factors in determining stopping side distances.
• ✋ Intersection safety relies on accurate calculations of stopping distances and amber times.
• 🚥 Coordinating traffic signal timings with vehicle characteristics is crucial for safe traffic flow.

Questions & Answers

Q: How does the driver's claimed dilemma zone relate to the amber display duration?

The driver suggests that the amber time is not sufficient to safely clear the intersection, leading to a dilemma zone where stopping or proceeding becomes risky due to inadequate warning.

Q: What factors were considered in determining the stopping side distance?

The stopping side distance was calculated based on the vehicle's speed, reaction time, length, width of the road, and coefficient of friction to ensure a safe stopping distance.

Q: How was the required amber time calculated for each vehicle?

The required amber time was determined by adding the reaction time and the time taken to clear the intersection based on the vehicle's speed, acceleration, and dimensions in relation to the provided amber time.

Q: Why is it important to validate the driver's claim regarding the amber time?

Validating the driver's claim ensures that the intersection's safety measures, such as the duration of the amber display, are adequate to prevent accidents and maintain traffic flow efficiently.

Summary & Key Takeaways

• Driver traveling at 50 km/h questions amber display duration at intersection.

• Calculations show stopping side distance and required amber time exceed provided time.

• Claim validated for both vehicles crossing the intersection.