In some sections, even if traffic signs and road markings do not prohibit overtaking, it is best not to overtake, because the level of danger may be more than 1 times higher than usual.
The first dangerous section to be talked about is the two-lane road that travels in both directions.
The road itself is narrower, and the oncoming lane is still a reverse vehicle, so the distance required to overtake will become very long.
Xu Lunhui et al. have a paper in the Journal of South China University of Technology (Natural Science Edition), which is shared with you, "A Two-Lane Overtaking Model Considering vehicle Operating Characteristics", which said.
The safety distance to ensure that the vehicle can successfully use the adjacent lane to overtake the front car and safely drive back to the original lane without colliding head-on with the vehicle coming from the opposite lane is called "overtaking the sight distance", and the sight is the "vision" of vision.
It has a calculation model, it says: the passenger car has increased the speed from 60km/h to 80km/h, to overtake the 60km/h car in front.
In the case of one-way two-lane, the overtaking visual distance is 544.57m; in the case of two-way dual lanes, if the speed of the oncoming vehicle is also 60km/h, the distance will become 1077.1m, more than 1km, close to double.
In fact, not only two-way two-lane, but also in any narrow two-way road, the situation is similar, and overtaking should be avoided as much as possible.
Especially when encountering conditions such as curves, steep slopes, night, and bad weather, the actual visual distance cannot meet the requirements of overtaking the visual distance.
Overtaking is almost wearing an eye mask to participate in the sports meeting, which is really a bit of a blind running smell, very dangerous.
It is best not to overtake in front of the crosswalk, as the line of sight is easily obscured.
Bai Yufang et al. have a paper in the journal "Urban Roads, Bridges and Flood Control", "Research on Pedestrian Crossing Traffic Safety Improvement Measures", which said: Call this situation "dynamic line of sight cut".
There are also some simulations in the paper.
The results show that assuming that the angle of view in front of the driver is 120 °, in the case of three lanes and a car in the next lane, the distance between the crosswalk and the parking line needs to be at least 5m to ensure that the driver's view area is transparent.
According to the "Road Traffic Signs and Markings", the crosswalk is 1 to 3m away from the intersection stop line, which is considered compliant.
To put it simply: at intersections with crosswalks, especially at intersections with three lanes or more, where the driver of the inner lane sees, it is easy to be disturbed by other cars in the adjacent lanes.
I can't see if anyone on the crosswalk is coming, and the local dialect is called "ghost probe" traffic accident.
The right thing to do is to try to avoid being faster than cars in adjacent lanes, and when we see the other person slowing down, we also slow down early.
Don't say, "Hey, this stupid one, slow down, I'm going to get up!" "If it's not good, there will be pedestrians crossing the road or whatever, people can't slow down for no reason, right?"
Overtaking on the bridge is also more dangerous.
The first reason is that it is easier to encounter crosswinds on the bridge.
Wang Lu of Chang'an University has a paper, "Research on the Driving Safety Impact of Bridge and Tunnel Connection Section of Mountain Expressway in Wind Environment", which has been discussed.
Artificial buildings such as bridges and roadbeds can produce artificial gusts, and these unsteady lateral crosswinds may have a safety impact on driving.
When overtaking, if you encounter a crosswind, just to overtake, side by side, almost past, "Ah" This is not a blow or how, it is likely that there is no room for even the rescue car to dodge.
The second reason is that an accident on the bridge would have been more dangerous than on a flat road.
Whether it is an overpass or a bridge above the river, once it falls, it is equivalent to a secondary accident.
Assuming that the bridge deck is 20 meters high from the ground or the water surface, 5 or 6 floors, the car falls from the 5 or 6-story buildings and falls down, which is equivalent to hitting again at a speed of 71 km per hour.
And this time it is likely that there is no airbag, the front has been bounced off, or it is enough buffer, and the chance of survival will be very low. Even if you hit the water, it's the same, you search the Internet for diving programs.
Where there is a slope, it is best not to overtake, the steeper the slope, the more difficult to overtake.
Wan Liangliang of Liaoning University of Technology has a paper, "Research on the Model of Vehicle Forward Collision Avoidance Safety Distance under Different Road Conditions", which mentions: The ramp will affect the dynamics and braking of the car.
To put it simply: the car is on the ramp, the throttle and brakes may not be as obedient as usually driving on the flat road, once the driver's judgment is wrong, there may be problems when overtaking.
It's like saying: before the exam, you review according to the usual revision intensity, and you think that this time you must have passed the exam.
However, when the exam was taken, it was found that the overall difficulty of the exam increased, the slope went up, and many difficult knowledge points were not reviewed, and the result may not be able to pass the problem.
In addition, drivers driving on ramps are also very prone to illusions.
Chen Fang of Chongqing Jiaotong University has a paper to share with you, "The Impact of Highway Visual Environment on Driving Safety", which has been discussed.
In the process of driving on the ramp, especially when the slope of the front and rear ramps changes, the driver will misjudge the slope, and may carry out some unnecessary or even wrong operations, which will increase the risk of overtaking.
In general, except for most of the tunnels, ramps, and places with solid white lines.
The 4 major road conditions just mentioned earlier, even if the target is a dotted line, you can overtake, or simply no marking, we must try to avoid overtaking. If there is no need, don't be happy for a while.
There are still many places on the road, in fact, it is more dangerous, and the highway is getting more and more, right?
Even many novice friends are panicked when they hear the high speed.
As a novice, how to drive the highway at night? What to watch out for?
When driving, what habits are still there to show that we are not out of the novice period?
How many years does it take to drive a car to truly become an old driver?
Keywords: newbie
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bibliography
[1] XU Lunhui,HU Sangen,WU Shuai,LUO Qiang. Two-lane overtaking model considering vehicle running characteristics[j].Journal of South China University of Technology (Natural Science Edition), 2015.
[2] Bai Yufang,Chen Yi. Research on measures to improve traffic safety in crosswalks[j].Urban Road Bridges and Flood Control, 2020.
WANG Lu. Study on the Impact of Driving Safety on Bridge-Tunnel Connection Section of Mountain Expressway in Wind Environment[d].Chang'an University, 2014.
Wan Liangliang. Research on the safety distance model of vehicle forward collision avoidance under different road conditions[d].Liaoning University of Technology, 2016.
CHEN Fang. The influence of highway visual environment on driving safety[d].Chongqing Jiaotong University,2009.]