Traffic Predict

Best Time to Drive from Boston to Westford

Right now (9:53 pm EDT): about 50 minutes via I-93 North and I-495 South, usually 40 at this time.

Only 74% 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 Boston to Westford by day and time you leave (local time)
Leave5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm
Mon3537424743393838394352565243373639
Tue3539475448413939394655596048393640
Wed3538465349423940404858616246393740
Thu3538445348413939404857626048403742
Fri3535384039384042486064595443383637
Sat3534343535384143424039393736363636
Sun3534343435353639403837373636373740

About this drive

On weekdays the 39-mile drive from Boston to Westford (via I-93 North and I-495 South) usually takes as little as 35 minutes and up to 66 minutes, when leaving around 2:30 pm on Fridays. The fastest times to leave are before 6:30 am. Midday (11 am to 2 pm) it takes about 41 minutes. On weekends it is slowest around 12 pm on Saturdays (43 minutes).

About 36 miles of it is freeway, where times follow typical and live traffic from our sensors, and about 2 miles surface streets (3 to 7 minutes on weekdays), estimated from how jammed the freeways around them are at that time. Drive times are measured from central Boston to central Westford 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 Boston to Westford?

On weekdays, leave before 6:30 am. The drive usually takes about 35 minutes then, versus up to 66 minutes at the worst times.

How long does it take to drive from Boston to Westford?

The 39-mile drive usually takes 35 to 66 minutes on weekdays, depending on when you leave, and about 41 minutes midday.

When is traffic worst from Boston to Westford?

Leaving around 2:30 pm on Fridays is usually slowest, about 66 minutes.

Freeways on this drive

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