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Explanation: The section of the road where the two roads up and down the overpass and the viaduct are connected, and also refers to the section of the highway that connects with the adjacent auxiliary road. The ramp of the elevated road, the entrance road and the exit road are separated, and can only go downstream, and if the vehicle misses the off-ramp, it cannot get off the road from the upper ramp, but only from the next off-ramp.
The ramp of the overpass is also driven according to the set signs, and no one can go their own way.
Definitions] 1In a T-shaped (Y-shaped) interchange, the primary road that intersects is usually defined as the main line, the intersecting secondary road is defined as the leader, and the line connecting the leader to the main line is called a ramp.
Source: Card 1 system on the design drawing of the interchange.
Highways, 2003.
Liu Qiujiang, Zhang Xiaoyuan.
2.The so-called "ramp" at an intersection refers to a single-lane and one-direction turning road set up at an interchange to connect the upper and lower lanes of the interchange. The curve elements of a ramp are also composed of straight segments, circular curve segments, and spiral segments.
From: The application of total station in highway construction lofting.
Journal of Shandong Agricultural University (Natural Science Edition).
Year 2001.
Qiu Jianzhuang, Xie Mingdong, Wang Jifang.
3.**The three-dimensional intersection of the road, the connection of the line is made up of different kinds of curved linear connections, called ramps. Due to the various forms of ramps, it is very difficult to calculate the coordinates of the piles.
The author through practical operation. The method of dividing the curve into each curve element is explored to calculate the coordinates of the middle pile, so as to solve the problem of calculating the coordinates of the middle pile of various line types of the ramp.
Source: The coordinate calculation method for road ramps.
Forest Engineering, 1999.
Wang Bingsheng, Jiang Yingjie, Dong Yongjiang.
The connecting road that traffic Figure 1 generally adopts interchange type three-dimensional intersection J in and out of expressway is called ramp, and the smoothness of the entrance of M road and highway connection affects the safe driving of vehicles, and here is also the difficulty and weight of highway tile design.
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A highway ramp (zā) is a road on the right side of the exit or entrance of the expressway (usually at 150 200 meters). A ramp, also known as approach road, is an engineering term that generally refers to a short section of ancillary road that provides vehicular access to a main road (expressway, viaduct, bridge, tunnel, etc.) and an adjacent auxiliary road, or a land bridge ramp or lead road to another main road, as well as a distribution road. It is the main traffic construction that makes up the road interchange.
The entrance ramp is followed by the acceleration lane, and the exit ramp is immediately after the speed lane. The speed in the ramp is generally required to be less than 40 km h, and the acceleration lane should be quickly accelerated to more than 60 km h.
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The ramp is an indispensable part of the interchangeable three-dimensional intersection, and it is a road for the intersection of the upper and lower levels. Whether the ramp design is reasonable or not is directly related to the play of the three-dimensional intersection function, the safe and smooth traffic, the economy of operation and the investment of the project. Therefore, according to the design basis of the heavy road, a reasonable arrangement should be made and an appropriate line shape should be used.
Entry and exit ramps: Ancillary connections to and from the main line, which can be "level crossing ramps" or "interchange ramps". It is the main traffic construction that makes up the road interchange.
Ramp speed limits. The speed in the ramp is generally required to be less than 40 km h, and the acceleration lane should be quickly accelerated to more than 60 km h.
When exiting the expressway, change lanes to the right at the right time. At a distance of 500m from the exit, turn on the right turn signal, adjust the speed appropriately, and smoothly enter the deceleration lane.
Slow down in the deceleration lane and enter the ramp. (Exit) to reduce the speed of the vehicle. Before entering the ramp, turn off the turn signal and control the speed of the vehicle to reduce the speed below the specified value of the sign. On ramps, pay attention to merging vehicles in other lanes, give way to traffic, and do not fight for the road.
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A ramps, also known as approach roads, is an engineering term. In a T-shaped or Y-shaped interchange, the main road that intersects is usually defined as the main line, the intersecting secondary road is defined as the leader, and the line connecting the leader and the main line is called a ramp. The ramp is an indispensable part of the interchangeable three-dimensional crossing, and the rationality of the ramp design is directly related to the three-dimensional intersection function, the safe and smooth traffic, the economy of operation and the investment of the project.
A ramp usually refers to a short section of ancillary connecting road that provides vehicular access to a major expressway, viaduct, bridge, tunnel, etc.) and adjacent auxiliary roads, or land bridges, ramps, lead roads, and distribution roads. It is the main traffic construction that makes up the road interchange.
Ramp classification. 1. Entry and exit ramps: the ancillary connection sections in and out of the main line can be "level crossing ramps" or "interchange ramps". It is the main traffic construction that makes up the road interchange.
2. On-ramp and off-ramps: ancillary connecting ramps for entering and exiting elevated roads and up or down vehicles, usually "interchange ramps". Note: The above two items (1 and 2) are usually added to the design of the distribution channel.
3. Direct ramps: Set the right turn lane on the right.
4. Non-direct ramps: set the left-turn lane on the right, and set up a loop to connect with other highways.
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Here's why:
1. Ramps refer to the lines connecting the main road and the fork road on the highway or viaduct, which generally appear at the intersection of the T or Y shape.
2. The "turn" in the ramp is the meaning of winding around, for example, we often call a circle of lines as turns, which is "coin" in ancient texts, which has the meaning of surrounding. Generally, our viaducts or high-speed ramps have to be detoured, so this short section of connecting road is called a ramp.
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Forks and bridges on and off highways and overpasses.
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The highway ramp is the road on the right side of the exit or entrance of the highway Gongchai Chek Road (generally 150-200 meters). The exit ramp is immediately behind the deceleration lane, and the speed in the ramp is generally required to be less than 40km h. 500 meters away from the exit, turn on the right turn signal, adjust the speed appropriately, and drive smoothly into the deceleration lane.
After slowing down in the speed lane, enter the ramp. (Drive out) to reduce the speed. Before entering the ramp, turn off the turn signal and control the speed of the vehicle so that the speed is lower than the specified value of the sign.
On ramps, watch out for vehicles that meet in other lanes, drive politely, and don't rush the road. After the entrance ramp, there is an acceleration lane, so you should accelerate quickly to more than 60km h, carefully observe the driving conditions of the vehicles in the lane, and choose the time to enter the lane. The acceleration lane does not allow for emergency braking or stopping.
When there are fewer vehicles on the roadway, you can drive into the lane after normal driving; When vehicles driving normally on the highway are behind, the speed should be controlled, and all vehicles should enter the lane after passing.
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Summary. Hello, I'm honored to answer for you, the meaning of the ramp mainly refers to: the interchange is the acceleration and deceleration lane and the connecting part between the main lane and other roads.
Hello, I'm honored to answer for you, the meaning of the ramp mainly refers to: the interchange is the acceleration and deceleration lane and the connecting part between the main lane and other roads.
Relevant information ramps, also known as approach roads, is an engineering term that usually refers to a section of a small section that provides vehicles to enter and exit the main road (expressway, viaduct rock shing wu road, bridges and tunnels, etc.) and adjacent auxiliary roads, or other trunk roads, land bridge ramps, lead lines or connecting roads, and distribution roads. It is the main traffic construction that makes up the road interchange.
The above is the meaning of the ramp, you can refer to it.
I also asked our teacher about this question, and I understand that when you get out of the highway and enter the highway, you need to speed up the lane, and then enter the ramp, and the ramp is the buffer road that enters and exits the highway from the general highway, one-way, this is a personal understanding, and I will help you check the explanation. As follows: >>>More
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