Block an operation automatically simple really, also do not allow easy occurrence accident; But nowadays block a car automatically too much, it is the hand is moved those who block is severalfold; Move without the hand from upgrade of B class car even blocked, does occurrence traffic accident get the model that is above of all B class then to bilk responsibility in block automatically on? Quantitative change causes qualitative change, the automatic archives car on market is the hand is moved those who block a car is severalfold; Even if the probability of occurrence accident of two kinds of gear-box is same, the actual amount of the automatic archives car that gives an issue also is moved than the hand block a lot of times taller; Block car and hand automatically to move the probability that blocks a car to appear to be operated by accident to agree, but the outcome that operates generation by accident is different, simple point says even if the hand is moved block fault tolerance rate is a few higher; Everybody can make the mistake, the hand is moved blocking is easier than be being blocked automatically err, but not easy however generation is serious and sequential!
Not be to be blocked automatically so appear easily traffic accident, the friend that leaves to block a car automatically however is too much; Above of B class car is moved without the hand block, because the hand moves the problem that blocks operation difficulty to appear,think the accident is impossible also to be opposite? Because do not have! If street face begin is moved,block a car to retain the capacity is times more than be being blocked automatically, so appear more easily of traffic accident is the hand is moved block a model; Block automatically in the consideration so move with the hand it is easy to block that when occurrence traffic accident, what want a consideration above all is the sort of gear-box retains the amount is larger, retain the probability of generous occurrence problem is certain also and more! 
Block automatically, the hand is moved if be in,block identical retain the probability that the accident appears below the circumstance of the quantity comparatives, specific feature says even if appear by accident the probability of step on the gas comparatives, very simple hand uses the argument the accelerator stop a machine by cutting off the power that block and block accelerator brake layout automatically to agree completely, no more than is the hand is moved block in the much leftest footplate of separation and reunion, it is nevertheless undertake by left foot control and right leg are operated by accident have nothing to do, the part that so sheet operates from right leg is blocked automatically, the hand is moved block become accelerator by accident the probability just the same of brake; And difference is sequential and different, can give an accident namely, but the outcome of the accident is different; 
1. hand moves block a model: Gear-box won't rise archives automatically, and when the travel before be being blocked when car low speed (often appear by accident step on the gas is low speed travel when, ahead gives active person or obstacle suddenly) , ahead gives active person suddenly, because even if of the person that drive is alarmed appear by accident the state of step on the gas, even if is step on accelerator dead, and speed is blocked as a result of low speed restrict and go up not to come, so even if by accident step on the gas strikes a person, because rate is low,also often won't cause too serious consequence (alarmed when pedal is to walk after all almost) !
2. blocks a model automatically: Setting still agrees with on one paragraph, some car D blocks empty accelerator delay fast before row, ahead gives active person suddenly, because the person that drive is alarmed bring about operate a fault to step on accelerator after all when brake by accident, TCU is judged right now car advocate want to carry fast, as a result rapid downshift releases torque, rise archives automatically to increase speed next, so once as a result of,block a car automatically by accident step on the gas strikes a person, fruit of past in the future is very serious! 
Wrote this a lot of friends to also understand so, the hand is moved block a car to be operated likewise easily by accident, but fault tolerance rate is high, the rigid structure that it can rely on oneself falls the serious rate that manipulates consequence by accident to the nadir; Appear same handle action by accident, the hand is moved block may send the pedestrian (flesh wound) , and block automatically criterion may the pedestrian deadly! Alarmed when by accident step on the gas is to walk after all necessarily, the overtake other cars on the road of downshift of TCU direct acquiesce that blocks automatically, the instant pulls the rate of the car; And the hand is moved block want to finish same process to need to step on next separation and reunion, shift gears, loose separation and reunion first, this 3 paces had finished, cannot still discover was operated by accident? 
So relatively trival operation sex gifted the hand uses the fault tolerance rate with higher transmission case; Photograph comparing is blocked automatically and character, the hand is moved block much the measure of a few other, and make these measure also enough amortize discovers operated by accident; Block automatically as a whole, the hand uses the active security that block same (but to the novice, the hand moves the active security that block to exceed low) , but from the point of passive security the hand is moved block take actor; But accident of unapt still occurrence traffic, block automatically actually by accident step on the gas appears in for the most part novice and a few before had not touched the friend body that blocks automatically to go up, and after they know the character that blocks automatically gradually, not incidental also accident; And is the accident that opens a hand to move the novice that block to appear little still? Only the accident of uphill flameout smooth car does not come over this with respect to much number, so the hand moves the accident that blocks a car not little; If the hand is moved,block as much like blocking a car automatically, the hand moves the probability that blocks occurrence accident still is far taller than be being blocked automatically, still be that word to veteran, the hand is moved the active security that block and block automatically consistent, but to the novice the hand moves the active security that block to exceed low (very easy and active erred, shift gears, now.. leisurely with respect to flameout) ! 
