Traffic Predict

Best Time to Drive from San Ramon to Tracy

Right now (3:20 pm PST): about 33 minutes via I-580 West, usually 34 at this time.

Only 13% of this drive is measured by working traffic sensors right now. The rest is estimated from nearby sensors, typical speeds and street traffic, so times can be off. Why so few sensors work.

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Typical drive time by departure time

Minutes from San Ramon to Tracy by day and time you leave (local time)
Leave5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm
Mon3350716648373636353434353435333332
Tue3249666650383636343434343434333232
Wed3251707063413635353434343435343332
Thu3349686847373535353434343535343332
Fri3351654140373635353636353434323232
Sat3232333333333333343434343435333232
Sun3232323232333334343434374949363432

About this drive

On weekdays the 34-mile drive from San Ramon to Tracy (via I-580 West) usually takes as little as 32 minutes and up to 73 minutes, when leaving around 6:30 am on Wednesdays. The fastest times to leave are before 6 am or after 12:30 pm. Midday (11 am to 2 pm) it takes about 35 minutes. On weekends it is slowest around 5:30 pm on Sundays (50 minutes).

About 31 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 3 miles surface streets (5 to 12 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central San Ramon to central Tracy along the route on the map. Starting or ending elsewhere in a big city can add or save several minutes.

Simulated from typical freeway speeds at each point of the drive for the time you would reach it, from every 5-minute reading we have recorded. We don't have sensors on surface streets yet, so the time on them is estimated from how congested the freeways around each end of the drive are at that time, in both directions: streets jam when the freeways do.

Questions

What is the best time to drive from San Ramon to Tracy?

On weekdays, leave before 6 am or after 12:30 pm. The drive usually takes about 32 minutes then, versus up to 73 minutes at the worst times.

How long does it take to drive from San Ramon to Tracy?

The 34-mile drive usually takes 32 to 73 minutes on weekdays, depending on when you leave, and about 35 minutes midday.

When is traffic worst from San Ramon to Tracy?

Leaving around 6:30 am on Wednesdays is usually slowest, about 73 minutes.

Freeways on this drive

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