With the wave of digitalization and intelligence, transportation management is experiencing profound changes. During the Xiamen Traffic Expo from April 10^th to 12th, the important project case exhibited by the governing unit of the alliance, Zhongkong Information, the 235 National Road Jind'anli to Loujiang Section (i.e., "Jinyi Central Avenue"), has attracted much attention and praise. It is the traffic linking the central Zhejiang urban agglomeration. By building the Jinyi Central Avenue Smart Highway Integrated Management Platform and implementing the digital reform of traffic management it has successfully created a modern engineering example of "Smart Highway". 

Jinyi Central Avenue, hailed as "the first road in Zhejiang", is also known as a "free highway" leading from urban area of Jinhua to Yiwu, and is the "arterial project" for the quality improvement and capacity expansion of transportation in the Jinyi metropolitan. The starting point of Jinyi Central Avenue connects Guotong Avenue in Yiwu City, and the end point connects the Second Ring East Road in Jin City. With a total length of about 23 kilometers, it is an inter-city expressway running through the golden main axis of the Jinyi metropolitan area

There are many road networks between Jinhua and Yiwu, but only the Central Avenue of Jin-Yi can meet the standard of "way". As the first "expressway" in Jinhua without traffic lights, the whole line adopts the most cutting-edge "smart highway" concept, and project has taken the lead in designing and implementing the "smart highway" in ordinary national and provincial roads, realizing the standard reconstruction and expansion of the two-way eight-lane highway, walking on such a national road, just like walking on a highway.

Since March 1st, the Jinyi Central Avenue has ended its three-month trial operation and has been officially put into operation. On the interchange the Jinyi Central Avenue and Loushan, vehicles are smoothly driving on the crisscrossing lanes. The maximum speed limit of the main line section has been from 80 kilometers per hour to 100 kilometers per hour.

As a "smart highway", the "smartness" of the Central Avenue of Jin-Yi is reflected in all aspects. For, the event detection function module can remind the staff of various abnormal events such as traffic accidents, abnormal parking, illegal driving, and pedestrian intrusion on the road, immediately report the specific information such as location and time, so that the departments of the monitoring sub-center can respond to the emergency and start the emergency plan.

23 speed cameras, real-time vehicle dynamic tracking; 13 information boards to guide vehicles safely; multiple fence collision sensing systems to detect vibrations and link to video capture in real time, effectively detecting trucks attempting to evade weigh stations, and proactively discovering accidents; upstream and downstream information boards automatically prompting vehicles to avoid; radar-vision fusion sound and light prompts, flexible supervision... The smart highway comprehensive management platform is "playing a great role" on the Central Avenue of Jin-Yi

1、 Fully create a "digital twin" of the smart highway;

As a key transportation project in Zhejiang Province, the construction of the Jin-Yi Central Avenue has taken the lead introducing the concept of "digital twin", striving to create a smart highway with full-coverage element perception, all-weather safety assurance, all-round travel services and all-digital business management.

By tapping into the demand of all parties, Zhongkong Information uses technologies such as digital twin, radio-vision, interconnection intelligent control, and intelligent algorithms to construct the "1+1+5+X" smart system of the Jin-Yi Central Avenue—1 set traffic basic perception system, 1 digital twin road network of infrastructure, 5 major systems, namely, intelligent perception system, safety guidance system, passenger and freight system, smart service station system, and highway maintenance system, empowering X application scenarios. It explores the digital operation of highways, focusing on solving a series of problems such unblocking road congestion, ensuring safe travel, improving maintenance efficiency, and optimizing travel services.

In the road network operation monitoring command center, the large screen achieved all-round display of the operation data of the central avenue, integrated management, maintenance, and service applications. The staff of the monitoring center grasp the road and conditions on this road through the large screen.

Since the official operation of the Jin-Yi Central Avenue, speeding incidents have occurred from time to time. unique smart highway platform of the Jin-Yi Central Avenue integrates speeding incident monitoring and statistics, guidance information release, and traffic police punishment, forming an event discovery,, reporting, and disposal loop, leading to a significant reduction in speeding incidents..

2、 Intelligent perception system, data fusion analysis

In the basic traffic perception system, multiple sets of long and short focal length, radars, gantry cameras, edge computing devices, meteorological monitoring stations, road skid resistance testers, and bridge safety testers are set up on Central Avenue of Jinxi, to sense the road operation condition in real time. The information feedback from these front-end hardware is the data basis of the entire "elligent Highway Management Platform".

By covering the entire road section with millimeter-wave radars and long and short focal length videos, the platform builds an intelligent system to achieve all-round environmental perception of roads, guardrails, and bridge structures, improving the safety service management level of the Central Avenue of Jinxi.The monitoring coverage is extremely wide, with an intelligent perception facility every 240 meters on average. Any illegal parking, driving in the opposite direction, or pedestrian intrusion will trigger and automatically capture and alarm in the first time. Relying on the "smart brain" of the command center and 24-hour personnel, traffic violations are captured by intelligent perception devices, reducing traffic accidents, achieving rapid emergency linkage, improving travel experience, greatly improving maintenance efficiency, and truly reflecting efficient, orderly, and safe travel of the Central Avenue of Jinxi.

3、 key vehicle monitoring, and standardizing driving behavior

When a vehicle commits three violations or five uncivilized driving behaviors on National Highway235, the vehicle will automatically enter the key vehicle database. The system will focus on supervising such vehicles, making it convenient to track and standardize the behavior of large truck drivers. Based on front-end radar and video equipment, the driving trajectory of key vehicles can be tracked, and the driving trajectory of the can be viewed in real time. At the same time, the basic information of the vehicle, such as the license plate number, vehicle type, and driving speed, can viewed.

4、 Cargo and Passenger Separation System, Achieving the Goal of Speeding Up

The mixed traffic of cargo and vehicles is an important reason for the low traffic efficiency of ordinary national and provincial highways. The traditional solution for separating cargo and passenger vehicles is to use gantry cameras capture, but this method has a lot of blind spots. In places where capturing is not possible, trucks still change lanes at will. According to relevant data, the proportion of trucks on the Jin-Yi Central Avenue is about 30%, and the proportion of trucks is large. In order to reduce the safety hazards by factors such as slow truck speed, it is imperative to separate cargo and passengers.

In response to the situation that the large trucks occupying the passenger vehicle lanes in cargo and passenger separation roads are rampant, the project has created a cargo and passenger separation system. Under the all-round tracking of the "digital twin" system, occupying passenger vehicle lanes are nowhere to hide.

The entire Jin and Yi Central Avenue supports truck lane change capture. Through radar and video full-section coverage, trajectories are tracked throughout the journey, and truck driving lanes and vehicle information are monitored in real time, to achieve rapid detection of illegal trucks and automatically related relevant information evidence When a truck is detected entering the fast lane, it will immediately issue corresponding information to advise the truck to leave the fast lane, and it can also be linked to intercom system for intercom reminders, thus achieving cargo and passenger separation. After operation test and verification, the cargo and passenger separation operation accuracy is good, and thethree improvements" goal of speeding up on national and provincial highways is truly achieved.

5、Safety guidance system to enhance driver and passenger services

In response to common issues such as severe weather, natural disasters, traffic congestion, accident construction, etc., a safety guidance system has been developed. The smart highway comprehensive management platform releases traffic information through variable message signs, providing adaptive safety guidance for on the expressway, implementing targeted guidance strategies, and coordinating with the command center for emergency response. This improves the level of driver and passenger services, ensuring the safer and smoother operation of Jin-Yi Central Avenue..