GATE CE 2016 Set 2 — Question 63
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.MCQ+2 / -0.67MediumSignal Design (Webster's)Intersections & SignalsTransportation Engineering
Transportation Engineering → Intersections & Signals → Signal Design (Webster's)
Last updated
Question
The critical flow ratios for a three-phase signal are found to be , , and . The total time lost in the cycle is . Pedestrian crossings at this junction are not significant. The respective Green times (expressed in seconds and rounded off to the nearest integer) for the three phases are
Correct answer
(A) 34, 28, and 28
Solution
Using Webster's method for signal timing:
1.Sum of critical flow ratios ():
2.Total lost time ():
3.Optimum cycle length ():
4.Total green time ():
5.Green time for each phase ():
The respective green times are 34, 28, and 28 seconds.Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE CE question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on Intersections & Signals
2026 Set 1 Q19Corrections are applied to the basic length of the runway strip considering: (i) The elevation …2026 Set 2 Q23An incident occurred on one side of a median on a four-lane dual carriageway road section. This…2026 Set 2 Q24Which one of the following statements is TRUE?2026 Set 1 Q24Cant on a Broad Gauge railway track is calculated for an equilibrium speed (in km/h),…2026 Set 2 Q25The primary purpose of the Windrose diagram is for the design of