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If the flow ratios for the lane groups NBLT, SBLT, NB, SB, EB, and WB are...

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Civil Engineering

If the flow ratios for the lane groups NBLT, SBLT, NB, SB, EB,and WB are 0.19, 0.16, 0.30, 0.28,0.30, and 0.26, respectively, dowe need an overlap phase, yes or no?

What is “average speed” we use in the relationship where flow isdensity times speed?

a. time mean speed

b. space mean speed

What types of locomotive works best for urban transitsystem?

a. diesel-locmotive

b. diesel-electric locomotives

c. electric locomotives

d. steam locomotives

Answer & Explanation Solved by verified expert
3.7 Ratings (296 Votes)
i The sum of flow ratios of all phases must be unity 1 If we provide free left turn for the Northbound left turn NBLT and Southbound Left turn SBLT there is no requirement for phase overlap But if we do not provide free left turn all the traffic flows must be considered For the given lane groups the sum of flow ratios 0190160302803026 149 So we are getting sum of flow ratios more than one So we must have an overlapped    See Answer
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