the ten way reverse Lane application has been widely used by reporter Wang Feng Zhang Dandan for
11 days. This newspaper analyzed the Kaiyuan tunnel The long red light looks like the truth of "high energy". Many readers telephoned this newspaper to reflect that they had encountered the "high-energy" signal lamp which was not seen in their own strength. "Some roads seem to have two signal lights, some traffic lights are contradictory, and there are road links at any time." They say, although driving for years, but suddenly encountered this kind of light in the road, the brain hole is not necessarily enough to use, after a reluctance to make a choice, the heart is still particularly perturbed.
how should these "burn brain" signals be broken? What are the stories behind "high energy"? Let's look at the "truth".
reverse variable lane light green light in ten road, road, industrial South Road, left turn without stopping
in July 2012, the first variable lane appeared on the streets of Ji'nan. The type is the left turn of the reverse lane. The first reverse variable lane is located at the junction of ten ring road. A reverse lane close to the guardrail was painted green, about thirty or forty meters in length. In the eastern part of the green lane, the central barrier opened a hole. The principle is to open a certain distance from the parking line at the intersection, allow the vehicle to enter the reverse lane, and tell the vehicle when the vehicle can enter the reverse variable lane through the signal lamp and when it can not enter the reverse lane. In this way, the north-south direction of the direct vehicle traffic, the east-west direction of the left turn of the car can be queued by way, a left turn signal averaging more than 8-10 vehicles.
reverse variable lane signal lamp has two key points: one is allowing the reverse lane to open, after 12 seconds left turn signal will be green light, this 12 second setting is based on the first vehicle arriving at the crossing line of the first car at the speed of a left turn signal enough to enter the reverse variable lane vehicle all If the left turn signal is still green, but the reverse variable lamp has turned red, do not enter the variable lane.
reverse lane changing technology was first created by Ji'nan traffic police detachment. The system has been put into operation for 3 years, and its effect has been very good. It has been replicated in many cities in China. In the urban area of Ji'nan only, the system has been applied at 21 intersections through ten roads, one road and industrial south road. Location in Huayuan Road Qilihe road Dongkou, Xikou
leave when left straight to walk, signal light with the text together to see
the north is the Middle Road, the south is Qilihe Road, Huayuan Road Qilihe Road intersection said is the intersection, but the original North and South Road is not in a straight line, two intersections misplaced more than 30 meters. There is a lot of pressure on the straight and left turn of the intersection. To this end, since 2013, traffic police departments began to continue to transform this junctions. First of all, the westward traffic lights moved westward for 50 meters, widening exports, thus enabling the North-South vehicles to go straight.
in order to improve the traffic rate, there are direct waiting zones and left turn variable lanes in the East and West ports. Towards the end of the North-South green light, the left turn ready signal in the east-west direction is switched on, and the converse lane changes to the left turn. When the left turn signal lights are green and the left turn vehicles turn left one after another, the eastbound and eastbound vehicles enter the waiting area, thus increasing the number of vehicles released directly.
according to the original theory, when the left turn is variable and the straight line is waiting for a row, a signal cycle can at least release more than 40 vehicles. However, after running for a period of time, the effect is not as expected. "At the beginning, the green light of the left turn lane changed, but few cars dared to pass. Later, there were more converse crossroads, and more left turn on the way, but it was still too few to go straight. Zhao Jingchun said.
3 months ago, the signal lamp of Qilihe road in Huayuan Road was reformed. After the transformation, there was a sign beside the straight signal lamp, and the word "straight line to wait" was written on the card. According to the current observation, after the renovation, the number of vehicles waiting to go straight up has increased significantly.
a crossing signal "fight"? One of them is the tide Lane lamp
Mr. Wang told reporters that a year ago, he had been in the construction of a signal light "fight", because he did not understand the signal, he left a red light record, "it was evening," I drove south to the ten road Jianshe Road intersection, far ahead of the green light. I didn't stop and drove straight past. But half way through, I suddenly noticed that there was a signal light on the opposite side of the road. It was clearly a red light. Go back and check, it is a red light to break the rules. "
14, the reporter came to Mr. Wang's position and found that there was a tidal Lane on the south side of the intersection. The signal above the tidal lane is in the shape of "X". Zhao Jingchun, the director of the signal light Research Office of the Ji'nan traffic police detachment, told reporters that the transformation was just finished not long ago and the purpose was to avoid the illusion of two signal lights.
"the front set is a normal signal indicating the North-South vehicle traffic, and the rear lights are actually a group of tidal signals. The ten roads to eleven sections are set up as tidal lanes, the middle lanes are variable lanes, and the two side lane lines are double yellow lines. The evening peak is from 16:30 to 19. The middle lane is south, while the other is the opposite. Originally, we set up a Longmen rack at the junction and indicated the direction of the traffic with traffic lights. But because the prompt light is closer to the signal light, it is easy to cause the driver to misjudge, so we changed the logo. Zhao Jingchun said.
it is understood that there are 4 tidal lanes in Ji'nan. They are located in the south section of Shun Hua Road, Jianshe Road on the ten road, the East Road of the second ring road of the tourist road and the new sunshine road. Ten road ten weft twelve road Dongkou through ten road through the seven Road East
Please note that the whole guide lane "face" is changing!
16, 9 a.m., ten road through the seven road traffic will not rest. On the Longmen shelf northeast of the intersection, 4 signboards hanging above the driveway are particularly eye-catching. Among them, only the sign above the two lane is a LED screen, and the screen is displayed as "straight lane". However, the reporter saw on the scene, although the East and west direction of the green light is on, the two lane car is not moving, and a lane with a left turn left and let go. At 11 a.m., the reporter went through the intersection again. At this point, the LED screen is displayed as the "left turn lane". There is a long queue in the left turn of the lane, but no car goes into the two lane.
this may be just a miniature of the intelligent signal lamp with "space adaptive" stunt in Ji'nan. Space adaptive technology is the highest form of intelligent variable lanes. Through the geomagnetic detector, the queuing length of the straight vehicle and the left turning vehicle is detected, and the lane function is automatically changed according to the number of vehicles. If there are many straight lines, the lane will automatically turn into a straight lane. If there are many left turning vehicles, the lane will automatically turn to the left turn lane. In addition to the ten way through seven road Dongkou, through ten weft twelve Road East there is another place.
in addition, there are two "same direction variable lanes" at the hero hill road and the north entrance of the North Road of the Second Ring Road East. The same is also based on traffic flow changes to change the lane's straight or left turn guidance. However, the direction of these two changes is artificially controlled, according to the peak hours in the morning and evening. The "space adaptation" has been fully intelligent.