Traffic Predict
Oracle Park Traffic: Game Days vs Normal Days
On weeknight Giants games, the freeways where Oracle Park's traffic gets on and off average 59 mph in the hour before the start, compared with 59 mph at that time on a normal weeknight (258 games from 2013 to 2019).
Next games
No home games are scheduled right now (off-season).
Weekday afternoon games, hour by hour
Average speed on the freeways where Oracle Park's traffic gets on and off, 75 games from 2013 to 2019, measured readings only. Most start at 12:45 pm (66 of 75), so the times below are for that start; each game is compared at its own start time.
| Time | Normal day | Game day | Difference |
|---|---|---|---|
| 9 am (3 h before) | 59 mph | 61 mph | +2 mph |
| 10 am (2 h before) | 64 mph | 64 mph | +0 mph |
| 11 am (1 h before) | 66 mph | 66 mph | -1 mph |
| 12 pm (start) | 66 mph | 66 mph | +0 mph |
| 1 pm (1 h after) | 65 mph | 65 mph | 0 mph |
| 2 pm (2 h after) | 60 mph | 58 mph | -2 mph |
| 3 pm (3 h after) | 59 mph | 44 mph | -15 mph |
| 4 pm (4 h after) | 58 mph | 32 mph | -26 mph |
Leaving after the game, I-280 North at 18th St is the slowest: about 37 mph slower than normal around 4 pm.
Freeway by freeway
| Freeway | Hour before the start | Worst hour after |
|---|---|---|
| I-280 North at 18th St | -1 mph | -37 mph at 4 pm |
| I-280 South at 18th St | +0 mph | -15 mph at 4 pm |
Difference from a normal weekday afternoon, in mph.
Weeknight games, hour by hour
Average speed on the freeways where Oracle Park's traffic gets on and off, 258 games from 2013 to 2019, measured readings only. Most start at 7:15 pm (229 of 258), so the times below are for that start; each game is compared at its own start time.
| Time | Normal day | Game day | Difference |
|---|---|---|---|
| 4 pm (3 h before) | 60 mph | 59 mph | -1 mph |
| 5 pm (2 h before) | 52 mph | 54 mph | +3 mph |
| 6 pm (1 h before) | 59 mph | 59 mph | +0 mph |
| 7 pm (start) | 65 mph | 65 mph | 0 mph |
| 8 pm (1 h after) | 67 mph | 67 mph | +0 mph |
| 9 pm (2 h after) | 67 mph | 67 mph | 0 mph |
| 10 pm (3 h after) | 67 mph | 66 mph | -1 mph |
| 11 pm (4 h after) | 67 mph | 67 mph | 0 mph |
Game days barely change freeway speeds here; the surface streets and parking lots are where the wait is.
Freeway by freeway
| Freeway | Hour before the start | Worst hour after |
|---|---|---|
| I-280 South at 18th St | +7 mph | -1 mph at 10 pm |
| I-280 North at 18th St | -7 mph | 0 mph at 10 pm |
Difference from a normal weeknight, in mph.
Weekend evening games, hour by hour
Average speed on the freeways where Oracle Park's traffic gets on and off, 42 games from 2013 to 2019, measured readings only. Most start at 6:05 pm (20 of 42), so the times below are for that start; each game is compared at its own start time.
| Time | Normal day | Game day | Difference |
|---|---|---|---|
| 3 pm (3 h before) | 65 mph | 63 mph | -2 mph |
| 4 pm (2 h before) | 65 mph | 63 mph | -3 mph |
| 5 pm (1 h before) | 66 mph | 63 mph | -2 mph |
| 6 pm (start) | 66 mph | 66 mph | 0 mph |
| 7 pm (1 h after) | 67 mph | 67 mph | +1 mph |
| 8 pm (2 h after) | 67 mph | 67 mph | +0 mph |
| 9 pm (3 h after) | 67 mph | 66 mph | -1 mph |
| 10 pm (4 h after) | 67 mph | 67 mph | -1 mph |
Game days barely change freeway speeds here; the surface streets and parking lots are where the wait is.
Freeway by freeway
| Freeway | Hour before the start | Worst hour after |
|---|---|---|
| I-280 South at 18th St | +1 mph | -1 mph at 9 pm |
| I-280 North at 18th St | -6 mph | -1 mph at 10 pm |
Difference from a normal weekend evening, in mph.
Weekend afternoon games, hour by hour
Average speed on the freeways where Oracle Park's traffic gets on and off, 101 games from 2013 to 2019, measured readings only. Most start at 1:05 pm (96 of 101), so the times below are for that start; each game is compared at its own start time.
| Time | Normal day | Game day | Difference |
|---|---|---|---|
| 10 am (3 h before) | 66 mph | 66 mph | 0 mph |
| 11 am (2 h before) | 66 mph | 64 mph | -1 mph |
| 12 pm (1 h before) | 65 mph | 63 mph | -2 mph |
| 1 pm (start) | 65 mph | 64 mph | -1 mph |
| 2 pm (1 h after) | 65 mph | 65 mph | +0 mph |
| 3 pm (2 h after) | 66 mph | 65 mph | -1 mph |
| 4 pm (3 h after) | 66 mph | 63 mph | -3 mph |
| 5 pm (4 h after) | 66 mph | 64 mph | -2 mph |
Leaving after the game, I-280 North at 18th St is the slowest: about 6 mph slower than normal around 4 pm.
Freeway by freeway
| Freeway | Hour before the start | Worst hour after |
|---|---|---|
| I-280 North at 18th St | -4 mph | -6 mph at 4 pm |
| I-280 South at 18th St | +0 mph | +0 mph at 5 pm |
Difference from a normal weekend afternoon, in mph.
How this is measured
Road sensors report how fast traffic is moving and how many cars pass. We use the ones where Oracle Park's traffic gets on and off the freeways (I-280 at 18th St) and the ramps there: averaging every freeway for miles around would hide a jam at the stadium exit under traffic that never goes near it. For each past home game we compare them, hour by hour, with the same weekday one to four weeks before and after when there was no game, leaving out holidays. Game times come from the teams' published schedules. Road sensors: Caltrans PeMS. Concerts and other events aren't included yet.
Only readings a working detector actually measured are used. Many Caltrans detectors are broken (how the sensors have declined), and PeMS fills them in with estimates that can't know a game is on, so this page leans on the years when more of them worked. Each sensor is compared only with itself, and a game is left out when too few were measured.