in Traffic Engineering recategorized by
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The critical flow ratios for a three-phase signal are found to be $0.30, 0.25$ and $0.25$. The total time lost in the cycle is $10 \: s$. 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

  1. $34, 28$, and $28$
  2. $40, 25$, and $25$
  3. $40, 30$, and $30$
  4. $50, 25$, and $25$
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