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Traffic data on previous choke points at viaduct connection

by Joel Moreno | KOMO News Traffic data on previous choke points at viaduct closure (PHOTO: KOMO News) SEATTLE –…

by Joel Moreno | KOMO News

Traffic data on previous choke points at viaduct closure (PHOTO: KOMO News)

SEATTLE – With the closure of the Viaduct almost on us, the question is for so many how long it takes to get there will come again. on where people live, but there is research on how the choke points have appeared earlier.

INRIX, Kirkland-based traffic consulting company, analyzed which commutes were when the viaduct was closed for nine days in 2016.

A review of data shows alternative routes in the heart of Seattle were overwhelmed. 1st Ave S and 4th Ave S between the arenas and Spokane Street saw driving times jumping 29 percent. It can add 20 minutes to an hour’s journey.

Commuters from the north also came to a crawl. The drivers moved 44 percent slower on I-5 around the Ship Canal Bridge and an hour on the road became an hour and 25 minutes.

“I think it will be rough when I am in Seattle but frankly I tend to spend most of my time on the Eastside, so I drive 405,” says Hank Burton, who commuted by car every business day.

But I-405 was also hit hard. Between SR 167 and the I-90 float bridge, the travel times increased 18 percent, which gave 12 minutes to one hour’s driving.

Some of the worst jams were on average I- 5 south of the city where they travel times increased 51 percent.

“Good luck to all the other drivers out there and stay safe in this crazy weather,” says Lina Olund, a Uber driver.

found that still worked, the Aurora Bridge and Ballard Bridge still ran smoothly most of the time. The West Maple Valley Highway and I-405 north of the SR 520 bridge also avoid most of the effects.


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