Sanwan Township road accident hotspots and casualties
From 2024/01 to 2026/08, Sanwan Township recorded 219 casualty road accidents, 3 deaths and 257 injured, which is 1.1% of Miaoli County.
Sanwan Township averaged 6.8 accidents a month over this period. Within a day the peak hour is 08, at 10.0% of the total; the night hours from 22:00 to 05:00 account for 5.0%; weekends account for 43.8%. Excluding the month still being filled in, the last 12 complete months had 82 accidents against 93 in the 12 months before, down 11.8%.
Motorcycles account for 53.5% of parties involved. There were 3 deaths in this period. With numbers that small it is not meaningful to convert to a death rate and compare with other areas — a single accident moves it by several times.
Roads appearing most often in Sanwan Township
Counted by road names appearing in the accident address. Where the address is written as a junction (“A Rd / B Rd”), both roads are counted once.
| Road | Accidents | |
|---|---|---|
| Provincial Highway 3 | 34 | |
| Zhongzheng Rd. | 20 | |
| Taisanxian Rd. | 3 | |
| Wenhua St. | 3 | |
| Zhongshan Rd. | 3 | |
| 124bingxian Rd. | 3 | |
| Qinmin Rd. | 2 | |
| Heping St. | 2 | |
| Miao19xian Rd. | 2 | |
| 2xian Rd. | 2 |
Long roads and busy roads naturally rank high. This is where accidents happened, not danger per kilometre. Road names are automatic romanisation, not official signage.
When accidents happen
| Hour | Accidents | Share | |
|---|---|---|---|
| 00:00–01:00 | 3 | 1.4% | |
| 01:00–02:00 | 2 | 0.9% | |
| 02:00–03:00 | 1 | 0.5% | |
| 03:00–04:00 | 1 | 0.5% | |
| 04:00–05:00 | 2 | 0.9% | |
| 05:00–06:00 | 2 | 0.9% | |
| 06:00–07:00 | 6 | 2.7% | |
| 07:00–08:00 | 11 | 5.0% | |
| 08:00–09:00 | 22 | 10.0% | |
| 09:00–10:00 | 17 | 7.8% | |
| 10:00–11:00 | 17 | 7.8% | |
| 11:00–12:00 | 20 | 9.1% | |
| 12:00–13:00 | 18 | 8.2% | |
| 13:00–14:00 | 14 | 6.4% | |
| 14:00–15:00 | 15 | 6.8% | |
| 15:00–16:00 | 18 | 8.2% | |
| 16:00–17:00 | 14 | 6.4% | |
| 17:00–18:00 | 13 | 5.9% | |
| 18:00–19:00 | 7 | 3.2% | |
| 19:00–20:00 | 7 | 3.2% | |
| 20:00–21:00 | 3 | 1.4% | |
| 21:00–22:00 | 4 | 1.8% | |
| 22:00–23:00 | 1 | 0.5% | |
| 23:00–00:00 | 1 | 0.5% |
By day of week
| Day | Accidents | Share | |
|---|---|---|---|
| Mon | 24 | 11.0% | |
| Tue | 24 | 11.0% | |
| Wed | 21 | 9.6% | |
| Thu | 31 | 14.2% | |
| Fri | 23 | 10.5% | |
| Sat | 40 | 18.3% | |
| Sun | 56 | 25.6% |
Primary causes
| Primary cause | Count | Share | |
|---|---|---|---|
| No cause determined yet | 51 | 23.3% | |
| Other improper driving | 28 | 12.8% | |
| Failure to slow down as required | 19 | 8.7% | |
| Distracted driving: inattention or anxiety | 13 | 5.9% | |
| Following too closely | 12 | 5.5% | |
| Other failure to yield | 8 | 3.7% |
This is the attending officer's assessment, not a court finding.
Collision type
| Type | Count | Share | |
|---|---|---|---|
| Overturn / fall on road | 48 | 21.9% | |
| Side impact | 32 | 14.6% | |
| Rear-end | 28 | 12.8% | |
| Same-direction sideswipe | 23 | 10.5% | |
| Other | 23 | 10.5% | |
| Ran off road | 11 | 5.0% |
Type is the collision pattern recorded by police; "Other" is how the source data classifies it and cannot be split further.
Lighting and weather
| Condition | Count | Share | |
|---|---|---|---|
| Daytime / lights off | 109 | 49.8% | |
| Night, unlit | 79 | 36.1% | |
| Night, lit | 31 | 14.2% | |
| Clear | 194 | 88.6% | |
| Cloudy | 16 | 7.3% | |
| Rain | 9 | 4.1% |
"Daytime / lights off" is the source category "lighting present but off or faulty", which in practice is mostly daytime.
Party types
| Party type | Parties | Share | |
|---|---|---|---|
| Motorcycle | 206 | 53.5% | |
| Car (incl. passenger/goods) | 124 | 32.2% | |
| Pedestrian | 31 | 8.1% | |
| Light truck | 15 | 3.9% | |
| Bicycle / slow vehicle | 5 | 1.3% | |
| Heavy truck | 4 | 1.0% |
By month
| Month | Accidents | |
|---|---|---|
| 2025/06 | 11 | |
| 2025/07 | 8 | |
| 2025/08 | 3 | |
| 2025/09 | 4 | |
| 2025/10 | 8 | |
| 2025/11 | 5 | |
| 2025/12 | 8 | |
| 2026/01 | 12 | |
| 2026/02 | 6 | |
| 2026/03 | 8 | |
| 2026/04 | 5 | |
| 2026/05 | 7 | |
| 2026/06 | 8 | |
| 2026/07 (partial) | 1 |
Months with no recorded accidents are not listed.
The National Police Agency refreshes its rolling data on the 1st and 15th of each month, so the last month is still being filled in and will always read low. Do not compare it with earlier months.
See Sanwan Township on the map
The map lets you drag the time range, show fatal accidents only, and filter by vehicle type. Zoom in and you can see individual stretches of road.
Open the accident heatmap for Sanwan Township
Flood potential in Sanwan Township — the same township in the flood potential tool: simulated flooded area under ten rainfall scenarios.
How to read these numbers
More accidents does not mean more dangerous. Places with more traffic, longer roads and denser population naturally record more. This data has no traffic volume to divide by, so a rate per ten thousand vehicle passes cannot be computed; it can only tell you where accidents actually happened.
The road ranking counts road names appearing in the address. In Taiwan 26% of accident addresses are written as a reference point along a road rather than an exact position, so this ranking is reliable at the level of a road but not at the level of a junction.
Only A1 and A2 accidents, which involve casualties, are included. Property-damage-only collisions are not, so the real number of collisions is higher.
Other districts in Miaoli County
Toufen City Zhunan Township Miaoli City Yuanli Township Houlong Township Gongguan Township Tongxiao Township Tongluo Township Sanyi Township Zaoqiao Township Dahu Township Zhuolan Township Touwu Township Nanzhuang Township See all