The person that buys a car now is increasing, traffic also becomes more crowded, if did not create traffic light, that estimation cans not move a step. The likelihood has some of person to be able to discover the traffic light of specific place is a circle, some are arrowhead, some places read a second without reciprocal.
Traffic light pours clock to have 2 kinds commonly: 1, study type times, this kind pours clock to alternant cycle learns red green time automatically and be shown according to traffic light come. Defect is timing meeting falls to suspend showing when the cycle when traffic light matchs changes every time, when matching newly, be timed to learn the ability after finishing to be able to continue to show. 2, communication type pours clock, just as its name implies, signal opportunity gives clock hair of the plan when matching currently, when clock matchs by solid some, show.
Say to read the advantage of second traffic light first: Raised the determinism that traffic light changes and foresight greatly, enhanced general efficiency. The driver can sentence an operation beforehand, far it see the green light that still leaves a few seconds is OK to see the green light that still leaves a few seconds judge according to current speed and distance whether in do not pass below the circumstance of overspeed, be able to pass reduced red light car queueing up, be impassable to be able to accept oily slowdown ahead of schedule, accomplish energy-saving, environmental protection and reduce car parts to wear away. On the other hand, also can get ready ahead of schedule when red light still remains a few seconds start, improve the general efficiency of crossing.
However, change the development of the process as the city, more and more traffic light cancelled to read a second, I feel this is not a good news.
To this kind of trend, the explanation that door of the Ministry of Communication gives out is: Traffic light of the type that read a second is insufficient intelligence.
Their argument is such:
In a lot of busy crossing, of traffic light when matching, be in a day is not changeless, especially early height and late height, road the current capacity asymmetry of a few direction, the likelihood is put in apparent tide effect, the way of peak value discharge of height of morning and evening is different also, need a policeman toward contact or assist alarm undertake the hand moves an operation, differ accurately even to control the discharged time of driveway, ability assures the optimization of general efficiency quite, such systems that read a second cannot work normally.
Dan Zaigong green light has the crossing that reads a second, car advocate can judge ahead of schedule whether can pass crossing, be controlled into travel speed and jockey, when although say to be being connected,crossing crossing, car should decelerate, but once did not read a second, so major car advocate can park the car before stopping a line ahead of schedule, everybody is afraid of enter red light, lowered current rate greatly instead so.
Do not want to go out really cancel to read a second to have the profit with cogent what to traffic participator. Not be the expression of what intelligence not only, get the car that gets a lot of discretion instead advocate 100 green light sees because be afraid of,change suddenly instead outside rice red light and decelerate, brought about the instead that can pass originally to be impassable, this reduced crossing general efficiency, increased to wait for the motorcade length of red light. Same, red light does not know to want to wait again how long, can have a lot of cars again advocate absquatulate, cannot be in green light react for a short while come over, dropped percent of pass further. This kind lets a person feel the long way when appearing traffic light, can saying really is 100 it is profitless to kill. Even if not whole journey reads a second, withhold 10 seconds to time to also go.
Return somebody to say, the meeting that read a second creates a vehicle advocate what grab green light quickly is final a few seconds, raise safe hidden danger. This is eyewash more. Otherwise overspeed, had quickened green light itself to which disobey to hand in compasses? How dangerous? With who to produce risk? If a car is mixed when passing permission to go ahead with some project,the person of other way collides with car happening, that specification is latter entered red light.
Of course also someone says to cancel to read a second to be able to allow a car advocate decelerate, won't resemble having when reading a second, pass quickly in the green light of last two seconds, create risk so easily, cancelling to read a second so have profit.
I also had encountered a lot of traffic light crossing that cancel to read a second, car advocate become more careful really, in crossing with respect to slow down speed, have some of car even advocate jockey ahead of schedule, bring about the car from the back to embrace.
All I am to think to cancel to read a second and do not have big effect, advantageous have disadvantage, unapt become red light suddenly, bring about the phenomenon that enters red light to happen. But no matter be to have,read a second to perhaps did not read a second, pass crossing should slowdown is general, do not go grabbing the time of this 9 seconds. How do you look? Does the welcome leave a message discuss?
