REVIEWED HIGHWAY ROUTE · 2020–2024
I-280 Crash Data in San Jose, 2020–2024
Reviewed CHP highway subset, 2020–2024. Coverage is incomplete and 2024 records remain provisional.
Where this report counts crashes
Reviewed CHP records for this route inside the current official City boundary, with valid time and coordinates and a same-route alignment match within 50 meters, after overlap screening. This is an incomplete highway subset.
Crash counts and injury outcomes
Route 280 has 2,945 recorded crashes in this selection, including 62 in which at least one person was killed or severely injured. The 12 fatalities and 55 severe injuries count people. Use the coverage notes when comparing this report with another place.
KSI means a crash with at least one person killed or severely injured. People and crashes are different units. Counts describe this dated study population, not risk per trip.
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Annual crash statistics, 2020–2024
| Year | Crashes | KSI crashes | People killed | Severely injured |
|---|---|---|---|---|
| 2020 | 364 | 9 | 1 | 9 |
| 2021 | 532 | 17 | 3 | 14 |
| 2022 | 673 | 15 | 4 | 13 |
| 2023 | 677 | 12 | 2 | 12 |
| 2024 | 699 | 9 | 2 | 7 |
Pedestrian, bicycle, motorcycle and vehicle involvement
Involvement does not identify who was injured. A crash may involve more than one road-user type. Unknown records are disclosed separately.
| Road user | Crashes involving mode | KSI crashes involving mode | Mode unknown: all crashes | Mode unknown: KSI crashes |
|---|---|---|---|---|
| pedestrian | 11 | 7 | 0 / 2945 | 0 / 62 |
| bicycle | 2 | 0 | 0 / 2945 | 0 / 62 |
| motorcycle | 82 | 12 | 0 / 2945 | 0 / 62 |
| vehicle occupant | 2913 | 56 | 11 / 2945 | 2 / 62 |
Actual KSI people by mode, with attribution coverage
These totals use verified party/person attribution only. Missing attribution is not zero. The observed person totals do not have complete coverage.
| Mode | Known KSI people of this mode | Crashes with usable attribution | Crashes with unknown attribution |
|---|---|---|---|
| pedestrian | 7 | 2945 / 2945 | 0 / 2945 |
| bicycle | 0 | 2945 / 2945 | 0 / 2945 |
| motorcycle | 12 | 2945 / 2945 | 0 / 2945 |
| vehicle occupant | 48 | 2945 / 2945 | 0 / 2945 |
Official sources and data limitations
- Historical reported crashes are descriptive counts, not a prediction of the next crash or an exposure-adjusted risk rate.
- Crash involvement and the injured person's road-user mode are separate measures. A mode-involved KSI crash can injure someone using another mode.
- Road-user and reported-factor fields have incomplete coverage. Recorded positive counts are lower bounds where classifications are unknown.
- The current municipal boundary and dated road geometry are applied to historical records.
- Rank ties are retained. Small count differences do not establish statistical significance, causation, fault or a road defect.
- CHP 2024 is provisional. Missing coordinates, route mismatch and unresolved overlaps are excluded; this route count is not the full number of highway crashes.