About the Suhua Highway Improvement Project
The Suhua Highway Improvement Sections are divided into three sections, Section A from Su’ao to Dong’ao, Section B from Nan’ao to Heping, and Section C from Hechung to Taichingchui. The Suhua Highway Improvement sections has a total length of 38.8 kilometers, with 8 tunnels(24.6 kilometers), 13 bridges(8.6 kilometers), and plane roads(5.6 kilometers). The section from Su’ao to Dong’ao was officially opened to traffic in February 2018, and all three sections were opened to passenger vehicles, buses and non-regulated trucks in January 2021.
In addition to the improved sections, the existing roads will continue to pass through the section from Dong’ao to Nan'ao and the section from Heping to Hezhong.
After the Suhua Highway Improvement Sections were opened to traffic, the existing Provincial Highway No.9 was renamed to Provincial Highway No.9D, and was partially co-lined with the new Provincial Highway No.9.
Safety Tips for Driving in Long Tunnels
Safety Tips for Driving in Long Tunnels
Only
single lanes are allowed in the tunnel.
Please
drive in the inside (left) lane.
The faulty vehicle should park on the right side lane waiting for the rescue.
Please keep the inside lane clear.
Turn off the vehicle to the left, leave the key in the vehicle and follow the instructions to escape.
Please keep the emergency lane clear.
Turn on the headlights before entering the tunnel.
Please follow the signs to drive.
Traffic control
Speed limit
The speed limit of the long tunnel (more than 3 km in length)is 70 km/hr, and a minimum speed limit of 50 km/hr. The speed limit of Renshuei tunnel is 60 km/hr(155k+340～157k+788)), and the speed limit of other tunnels and the end points on both sides of the tunnel is between 50 to 60 km/hr.
Height limit
The vehicle height limit is 4.6 meters.
Safe driving distance
The passenger vehicle keep the safe distance at least 50 meters from the vehicle in front, and the large vehicle keep the safe distance at least 100 meters from the vehicle in front, and please keep a distance of 20 meters in case of congestion or accident.
Passerby should follow the signs and markings when passing through the Suhua Highway improvement Sections.
Tunnel safety facilities (emergency escape facilities)
Evacuation communication channel
Pedestrian and vehicle evacuation communication channels are set up in the tunnel for emergency evacuation and maintenance.
One pedestrian evacuation communication channel is set every 350 meters.
One vehicle and pedestrian evacuation communication channel is set every 1400 meters.
Escape guide signMarking distance on both sides of this sign distance to the nearest evacuation communication channel.
Emergency telephoneAn emergency telephone is installed every 175 meters in the evacuation communication channel in the tunnel, and near the entrance and exit of the tunnel.
Please pick up the handset and inform directly to the "Traffic Control Center".
Mileage signMark the current location of the vehicle.
Please inform the location of the accident according to the content of the sign.
| Equipment in the tunnel | Pedestrian evacuation communication channel | Vehicle and pedestrian evacuation communication channel | Lane control signal | Emergency telephone | Fire hydrant box | CCTV and Incident Image Detector |
|---|
| Spacing (m/place) | 350 | 1400 | 300 | 175 | 50 | 110 |
Sectional drawing of safety facilities in long tunnel
Traffic control facilities:
1
Emergency Telephone, every 175 meters
3
Changeable Speed Limit Sign
4
Closed-Circuit Television
7
Traffic Control Facility Pipeline
Electrical and Mechanical facilities:
11
Wind Speed and Direction Detector
13
Fire Hydrant Box with Fire Extinguisher, every 50 meters
16
Vehicle and Pedestrian Evacuation Communication Channel, every 1400 meters
17
Pedestrian Evacuation Communication Channel, every 350 meters
Tunnel escape
5 Steps to escape from a fire in front of the tunnel:
【Parking】
The vehicle quickly parked on the inside (left), so that the emergency vehicle can enter smoothly.
【Turning off】
Park and turn off the engine, leave the key in the vehicle, and do not lock the door. For the emergency rescue, we usually need to move vehicles.
【Running】
People on the accident site escape in the direction away from the fire spot.
【Escaping】
Enter the nearest evacuation communication channel. After entering, do not open the fire door at will to avoid the entry of dense smoke.
【Dialing】
Contact and report via emergency phone, and pick up the emergency telephone handset and go directly to the traffic control center. Also you can dial directly from your mobile phone: 03-996-2683