Coordination control method for crossroad left-turning pre-signal and straight-going successive signal
A technology for coordinated control of intersections, which is applied to control traffic signals and other directions, can solve problems such as left-turn traffic jams, frontal collisions, and no conflict points for left-turn vehicles, so as to eliminate conflicts, avoid congestion, and ensure driving safety. Effect
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[0083] figure 1 See Table 1 for information such as the flow rate and saturated flow rate of the intersection shown, and the total loss time of timing is taken as 10 seconds.
[0084] Table 1 Arrival traffic and other information at the intersection of the example
[0085]
[0086] According to the formula ( e ), the key flow ratio of the north-south phase is calculated as follows:
[0087]
[0088] According to the formula ( f ), the critical flow ratio of the east-west phase is calculated as follows:
[0089]
[0090] According to the formula ( h ), the cycle duration can be obtained:
[0091]
[0092] According to the formula ( i ), the green light time of the north-south phase of the main signal is:
[0093]
[0094] According to the formula ( j ), the green light time of the east-west phase of the main signal is:
[0095]
[0096] According to the formula ( k ) ~ formula ( n ), the green light distribution of the left turn pre-signal is as fol...
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