Low-grade highway tunnel entrance energy-saving induction system

Abstract

The invention relates to the technical field of road safety, in particular to a low-grade highway tunnel entrance energy-saving induction system. The low-grade highway tunnel entrance energy-saving induction system is characterized in that road center double amber lines are arranged within the front overtaking sight distance of a tunnel entrance, and intermediate frequency linear induction signs are arranged within the decision-making line-of-sight range of the tunnel entrance with a spacing of 15-25m; high-frequency cat-eye spikes are arranged on a road centerline and lane sidelines from thedecision-making line-of-sight range outside a tunnel portal to the tunnel entrance section inside the tunnel portal with a spacing of 5-8m; an annular yellow-black facade marking line formed by a super aluminum back base reflective film is arranged on the tunnel portal of the tunnel entrance, the full outline of the tunnel portal is marked by the annular yellow-black facade marking line, and 4-5 high-frequency anti-collision barrels are arranged between the linear induction signs and the tunnel portal of the tunnel entrance with a spacing of 5-8m; and the entrance section inside the tunnel portal is provided with no less than 5 continuous light reflection rings, the interval is 15 to 25 m, and the two sides of the tunnel portal are symmetrically arranged. A safety visual reference system is constructed by using energy-saving materials, visual perception of a driver is induced during driving, and the low-grade highway tunnel entrance energy-saving induction system is applied to a secondary road with a speed limit of 60 km / h and lower grade road tunnels.

Description

technical field [0001] The invention relates to the technical field of road safety, in particular to an energy-saving induction system for low-grade highway tunnel entrances. Background technique [0002] With the continuous improvement of my country's national economic level, the number of tunnels built on secondary and lower-grade highways is also increasing. Most of these low-grade highway tunnels are single-hole two-way tunnels. On the other hand, the safety problem in the tunnel is also very serious. The accident rate of the tunnel section is 1.3 to 9.67 times that of the whole line, with an average of 5.17 times. much higher than normal. According to the statistics of the German ADAC agency, the accident rate of single-hole two-way tunnels is one of the highest among all kinds of tunnels. For single-hole two-way tunnels, due to the two-way driving characteristics of the tunnel itself, coupled with problems such as insufficient illumination and poor induction, accide...

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Problems solved by technology

[0003] In view of the current predicament of low-grade highway tunnels, tunnel management units often adopt two extreme methods at this stage. The first is to still install lighting fixtures for tunnels that are not mandatory to install lighting. Difficult problems. At the same time, due to the huge energy consumption, many operating units cannot afford huge lighting costs. If things go on like this, the common phenomenon of low lighting rate inside the tunnel and high distribution and low use of lighting facilities is created. This phenomenon is especially serious in the central and western regions. Therefore, the tunnel The internal lighting environment is not good, and traffic safety cannot be guaranteed; the second method is that lighting fixtures are not installed, and a complete guidance system is not installed to meet the driving characteristics of low-level tunnels and the requirements for improving the light environment, and some existing The improvement measures have the disadvantages of high construction cost and poor induction effect. Such tunnels often have great potential safety hazards

[0004] According to the "Detailed Regulations on Lighting of Highway Tunnels" (JTG_T_D702-01-2014), there is no mandatory requirement for the installation of lighting in the second-level road tunnels with a length of L≤1000m, and the specifications for third- and fourth-level road tunnels. At the same time, tunnels without lighting are mentioned Line-of-sight guidance should be set up, but there is no mention of how to do the line-of-sight guidance system. At present, there is no good practice in China for tunnels with low-grade roads and no lighting.

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