Guides · Cycling in Taiwan
When the KOM Route Opens Under Road Control, and Why You Cannot Ride at Night
The east approach to Wuling, the Taiwan KOM Challenge course starting in Hualien, runs through a construction control zone on Highway 8. The road is open, but when you can pass in daytime and for how long depends on published time slots, and the two halves of the zone follow completely different rules. This page lays out the hours in the September 2026 notice, the waiting points along the way, and the same restrictions your support vehicle is under, so you can see which plans will not work before you build an itinerary.
You Cannot Ride This Road at Night
The construction control zone on Highway 8 closes completely from 18:30 until 06:30 the next morning. Under the current notice the road is fully closed after dark, and your support vehicle cannot get in either, so riding at night is not an option.
Before closing there is a clearing period when the zone is exit-only. It runs 18:00 to 18:30 on the eastern section (Tianxiang to the Taroko entrance) and 16:30 to 18:30 on the western section (Guanyuan to Tianxiang). After 16:30 you can no longer enter the western section from Tianxiang, and anyone already on it must be out past Guanyuan by 18:30. The climb from Tianxiang to Guanyuan is close to 1,900 metres, so plan to be past Guanyuan by 16:30.
Two Sections With Different Rules
The notice splits the highway into two sections with very different rules. The eastern section can only be crossed in a few short windows; the western section is open all day but has waiting points along the route. Reading the two sets of hours as one schedule gives you an itinerary that cannot work.
The eastern section has five release windows a day. Two of them, 10:00 to 10:05 and 15:00 to 15:05, are only five minutes long. Only three are worth planning around, the 90-minute window from 06:30 and the two one-hour windows at midday and early evening.
| Section | Daytime access | Clearing (exit only) | Overnight |
|---|---|---|---|
| East: Tianxiang to Taroko entrance (km 167.7-184.5) | Five windows daily: 06:30-08:00, 10:00-10:05, 12:00-13:00, 15:00-15:05, 17:00-18:00 | 18:00-18:30 | Closed 18:30 to 06:30 |
| West: Guanyuan to Tianxiang (km 114.6-167.1) | Two-way 06:30-16:30 (with construction points en route) | 16:30-18:30 | Closed 18:30 to 06:30 |
The Western Section Is Open in Daylight, With Four Waiting Points
The western section is two-way, so you do not have to catch a window for the section as a whole. But there are four separate construction points along it, each releasing traffic on its own schedule. Allow extra time for waiting, and accept that the total cannot be calculated precisely.
The five windows at Huoranting differ from the five on the eastern section, with the 09:45 and 14:45 slots each off by 15 minutes. The two tables look alike and must not be used interchangeably.
| Location | Highway 8 | Release schedule |
|---|---|---|
| Huoranting (near Luoshao) | km 157.7 | Five windows during works 2-24 Sep, at 06:30-08:00, 09:45-10:25, 12:00-13:00, 14:45-15:25, 17:00-18:00 |
| Hualu Creek (near Cien) | km 147 | Timed to match the five windows at the Tianxiang end |
| Guanyuan | km 116.5 | Released roughly once an hour |
| Dayuling | km 112.6 | Released roughly once an hour |
Route Profile and the Two Control Sections
From Qixingtan the first 25 kilometres are almost flat, and the real climbing starts at the Taroko entrance. From 60 metres above sea level to 3,275 metres at Wuling, the route gains over 3,200 metres in 78 kilometres. The two background colours below match the two control sections described above.
Laid over the terrain, the control sections show that the heaviest climbing, Tianxiang up to Guanyuan, sits entirely inside the western section, with Dayuling as one more waiting point beyond it. There is no single release window to wait for, only four separate construction points along the way.
Can You Still Do It in One Day Under These Rules
Yes, but there is only one way to do it. Take the first 06:30 window at the Taroko entrance, use those 90 minutes to clear Tianxiang, ride the western section through the day, and aim to be past Guanyuan by 16:30. The latest you can leave the zone is 18:30.
There is not much margin in that plan. Tianxiang to Guanyuan climbs close to 1,900 metres and you still have to absorb the waiting time at four construction points. If you are not confident about that, or would rather not have the whole day dictated by the clock, you can enter on the 17:00-18:00 window and stay overnight at Tianxiang, then start at 06:30 with a full day ahead of you. The other option is the western approach from Puli, which avoids this control entirely.
Your support vehicle is under the same control and cannot follow you freely. It cannot be where you need it when you need it, so supplies and spares have to be distributed in advance.
How Current This Page Is, and What We Have Not Confirmed
Control hours are published month by month. Everything on this page comes from the September 2026 notice, and the Huoranting windows only run to 24 September. If your trip falls in October or later, look up that month and do not reuse this page.
The text of the notice contains no exemption for bicycles or slow vehicles that we could find. Some controlled sections treat slow vehicles differently from cars, but until that is confirmed with the authority, plan on the assumption that bicycles are controlled the same as cars.
Check again a week before departure. The sources we use are listed below.
Highway 14A right now
The notices and camera images below are fetched from the highway authority when you open this page, with notices lagging by ten minutes at most. Monthly statistics only give you odds. Checking here the night before and again at dawn tells you far more.
Live notices from the highway authority
Live cameras
FAQ
Is the eastern Central Cross-Island Highway closed?
No. The road is open; what applies is time-based construction control. It opens in published windows during the day and closes completely from 18:30 to 06:30.
Can I ride at night to avoid the control?
No. From 18:30 to 06:30 the whole section is closed, which is stricter than the daytime rules, and support vehicles cannot get in either.
Can the support vehicle follow the rider the whole way?
Not inside the control zone. The support vehicle is held to the same release windows as the bike and has to enter and leave with the same group, so it cannot appear at any point at any time. Supplies and spares need to be distributed in advance.
Is there another way up Wuling that avoids the control?
Yes. The western approach starts in Puli, Nantou, and uses Highways 14 and 14A, avoiding both controlled sections entirely. The trade-off is that it is not the Taiwan KOM race course and it does not pass through Taroko Gorge.
Sources
Rules and road conditions change, so always check the official announcements before you travel.
Related guides
- Wuling Hehuanshan Cycling｜Taiwan's Highest Road, 3,275m
- When to Ride Wuling Month by Month, and What 3,275 m Means Where You Come From
- Support Vehicles, Checkpoints, and What to Know for Taiwan Twin Towers 520
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