Traffic Predict

Best Time to Drive from Santa Ana to Altadena

Right now (6:53 pm PST): about 71 minutes via SR-57 North and I-210 West, usually 52 at this time.

Only 42% 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 Santa Ana to Altadena by day and time you leave (local time)
Leave5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm
Mon4567817566595553555763656355504846
Tue4673887871625754576065707265534946
Wed4672877869625756586271727465534947
Thu4665837567625656596269727460524947
Fri4660676462595762657075767262534946
Sat4648484849515556585959575754514947
Sun4647474748485052535452525251505046

About this drive

On weekdays the 49-mile drive from Santa Ana to Altadena (via SR-57 North and I-210 West) usually takes as little as 45 minutes and up to 88 minutes, when leaving around 7 am on Tuesdays. The fastest times to leave are before 6 am or after 7:30 pm. Midday (11 am to 2 pm) it takes about 58 minutes. On weekends it is slowest around 2:30 pm on Saturdays (60 minutes).

About 43 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 7 miles surface streets (9 to 28 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Santa Ana to central Altadena 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 Santa Ana to Altadena?

On weekdays, leave before 6 am or after 7:30 pm. The drive usually takes about 45 minutes then, versus up to 88 minutes at the worst times.

How long does it take to drive from Santa Ana to Altadena?

The 49-mile drive usually takes 45 to 88 minutes on weekdays, depending on when you leave, and about 58 minutes midday.

When is traffic worst from Santa Ana to Altadena?

Leaving around 7 am on Tuesdays is usually slowest, about 88 minutes.

Freeways on this drive

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