On July 1, during the morning rush hour, the Jinan traffic police implemented alternating release of signal lights in the connecting section of the East Elevated Road of the Second Ring Road and the Laohushan Tunnel. Recently, some citizens have reported to the New Yellow River that the effect of the signal lights in the area is not obvious in alleviating traffic congestion, but it leads to being late for work. On the morning of the 7th, the reporter conducted a field visit to the traffic efficiency of the southern entrance of the Laohushan Tunnel.
At about 7:30 a.m. on the 7th, the reporter drove from west to east on the South Expressway of the Second Ring Road, and when he drove to the vicinity of the south exit of the Laohushan Tunnel and was about to merge into the bridge ramp on the East Elevated Road of the Second Ring Road, the speed of the vehicle began to slow down. The reporter saw that the location of the traffic light was in front of the south entrance of the Tiger Mountain Tunnel. The 2 lanes on the East Elevated Road of the 2nd Ring Road plus the 3 lanes at the bridge ramp are merged into 4 lanes, and the middle separation strip separates the second and third lanes. There are 5 signal lights corresponding to the lane on the gantry frame across multiple lanes, and each signal light is located on each lane respectively, and is provided with lane division signs in turn.
The reporter noticed that the signal light was always flashing yellow, and a traffic policeman was standing at the gate to direct traffic. Vehicles in the corresponding lane pass in turn, with a speed of about 60km/h, and there is no congestion, and there is no interspersed and rushing traffic. After passing the signal, the reporter got off the bridge from the ramp in the direction of Jingshi Road, and this section of the road took 5 minutes.
Mr. Lu, an office worker who works in the high-tech zone, told reporters that this road is a necessary road for him every day, and in recent months he has found that when driving from the South Elevated Highway of the Second Ring Road to the East Elevated Highway of the Second Ring Road, vehicles have begun to become congested. "After the congestion, it was found that traffic lights were installed. But only once did I run a red light, and I waited a minute or two to get through. Most of the other cases are flashing yellow lights, and there are traffic police directing traffic during the morning rush hour, and there is no more congestion. In Mr. Lu's view, congestion should be relative, after all, when the left turn lane is red, the straight lane is the green light, and the natural traffic will be smoother than the left turn merger.
In response to the problems reported by the citizens, the relevant staff of the Jinan traffic police responded that on June 25, a notice had been issued on the "additional signal lights at the southern end of the Laohushan Tunnel". According to the report, since the morning rush hour on July 1, the lane separation signal control mode has been implemented at the southern end of the Laohushan Tunnel. "It is mainly based on in-depth analysis and judgment of the current traffic congestion problem. The Laohushan Tunnel faces huge traffic pressure during the morning rush hour, especially the traffic congestion in the south-to-north direction. By implementing the lane splitting control mode, the confluence speed can be effectively reduced, and the main and secondary traffic flows can be distinguished, thereby alleviating the congestion of the tunnel and surrounding roads. In addition, this control mode helps to ensure the safety of vehicles in the tunnel, providing a smoother and safer traffic environment for the public. The circular also mentioned that in order to effectively ensure the effective operation of lane control, measures such as optimizing lane functions, optimizing ground traffic markings, and improving traffic guidance signs were taken simultaneously.
Reporter: Zhao Shanshan Photographer: Zhao Shanshan Proofreader: Liu Tian Editor: Liu Meimei