After more than 1,200 collisions in the past three years, city officials decided to trim lanes and speed limits along the busy, narrow route.

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The city’s patience ran out last August, after a car slammed into the Carol Cobb Salon on Seattle’s busy Rainier Avenue South, pinning a family of three to the wall.

Miraculously, no one was seriously hurt. A neighborhood rally followed, the salon and the Greek restaurant next to it temporarily found other sites — and Scott Kubly, city transportation director, told staff to let loose their safety ideas.

Eight times in the past year, cars have smashed into businesses in and around the Columbia City business district. The city also reports 1,243 collisions in a 3½-mile stretch of Rainier Avenue South in the past three years, causing 630 injuries and two deaths.

Rainier’s road diet

The city is preparing to remove two general traffic lanes for 3½ miles between South Alaska Street and South Henderson Street. Also, the speed limit of 30 mph would decrease to 25 mph for one mile, through the Columbia City and Hillman City business districts. Options range from $500,000 to $2 million.

Option 1a: Reduce the four lanes to two lanes, plus a center left-turn lane.

Option 1b: Same as 1a, but add protected bicycle lanes in the Columbia City-Hillman City core.

Option 2: A “hybrid” layout that includes bus lanes in parts of the corridor. Some roadside parking would be removed.

Source: Seattle Department of Transportation

Twelve people have died on Rainier Avenue as a whole in the last decade, and there are twice as many collisions as on Lake City Way or Aurora Avenue North.

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The problem is speed, safety officials say.

So in October, the road’s four lanes will be reduced to two between South Alaska Street and South Henderson Street, plus a left-turn lane in the center. In a mile-long retail core, the speed limit will be reduced from 30 mph to 25 mph.

Rainier Avenue will undergo the city’s 36th so-called road diet since 1972, on a former state highway that attracts nearly 20,000 cars a day. Another lane reduction goes into effect in April on 23rd Avenue through the Central Area, including the stretch in front of Garfield High School.

On Rainier, one of seven drivers exceeds 38 mph between Columbia City and Hillman City, city samples found.

Nationally, road diets reduce crashes some 29 percent, while a city study of Seattle’s 2007 road diet on largely commercial Stone Way North found injury crashes dropped by a third. Average speeds dropped 3 mph.

“They need to do something. I know it might mess up the flow of traffic, but it could save someone’s life,” said Keshia Mcgee, pushing her grandson in a stroller past a shop door that was destroyed by a car. “People zooming up and down the street. It’s unnecessary. It’s really sad.”

The trade-off is delay, which the city guesses will be up to two minutes per driving trip through the project area. Some commuters will likely divert to Martin Luther King Jr. Way.

“That’s bad,” said cabdriver Mohammed Ali of Tukwila, who was driving north through Rainier Valley last week, rather than crawl up I-405 via Renton. “I want to have a choice. On MLK, there’s traffic, too.”

Vehicle-building crashes

The seventh building crash happened Feb. 27, through the front door of Rainier Beauty Supplies, at Rainier and South Orcas Street.

The owner, Samba Ceesay, was upstairs doing paperwork, while his wife worked the shop floor.

“It was just like an earthquake, I didn’t know what was going on. I tried to run, but as a man, decided to come back,” he said. “I saw big dust, and the smoke.”

The driver, Ceesay said, “was crying and screaming, that she didn’t know if she hit anyone.”

Vehicle collisions with buildings are a national problem, at about 60 per day, said Rob Reiter, whose research is endorsed by the Texas Transportation Institute. Two-thirds happen in parking lots, one-third along streets.

“There are a lot of Rainier Avenues all over the country,” Reiter said. The old downtown of Las Vegas and famed Colorado Boulevard in Pasadena, Calif., site of the Rose Parade, have made similar changes.

8

Number of times in the past year cars have smashed into buildings in the area of the Columbia City business district

12

Number of people who have died on Rainier Avenue in the past decade

25

The proposed speed limit, reduced from the current 30 mph, for a milelong stretch of Rainier Avenue South

1,243

Reported collisions over the past three years in a 3½-mile stretch of Rainier Avenue South

19,700

The cars that travel Rainier Avenue in Columbia City area daily

“By dropping the speed limit to 25 mph, you can reduce crashes,” Reiter said.

Rainier Avenue South carries about 19,700 vehicles per day through the Columbia City and Hillman City business areas. That’s among the busiest streets here to go on a road diet, along with West Nickerson Street five years ago.

The idea of reducing lanes on Rainier dates back at least to a neighborhood plan written in 1999. However, it was only in recent years that traffic declined 30 percent — as transit ridership grew — making the road suitable for fewer lanes, said city project manager Jim Curtin.

The Route 7 bus carries 11,000 riders a day, while new restaurants and cafes bring walk-in customers.

“They all have to cross a street at least once,” Curtin said.

Difficult trade-offs

The project falls under Seattle’s new Vision Zero policy, meant to eliminate road deaths and serious injuries by 2030. A core value is low speed. People have a 90 percent chance of surviving a 20-mph impact, but only a 10 percent chance at 40 mph, Kubly emphasized.

It’s also a test of Mayor Ed Murray’s Move Seattle initiative, when he declared not every mode of travel will be served by every street. Bus and bike lanes are being considered for the area, but there isn’t room for both, and building either would displace the merchants’ curbside parking.

Rainier therefore will require difficult trade-offs.

As for traffic congestion, City Councilmember Bruce Harrell, who has lived near Rainier Avenue for more than 40 years, makes an intriguing argument: Crashes block the roadway, so if low speeds reduce them, people might actually spend less time per year stuck in traffic.

Besides speed, a huge safety threat is left turns, where a car abruptly stops, and waits for an opening to go left on a solid green light. A turning driver often can’t see all the oncoming traffic. A central left-turn lane, with green arrows at Orcas and a few other spots, will help, Curtin said.

Curtin said new left-turn lanes could make the road more efficient, because traffic need no longer stop behind left-turning cars. Paved islands, already common in Wallingford, would deter drivers from zipping through the center turn lane.

And the city has grants for 250 extra enforcement hours this year and next, he said.

Stalin Harrison Jr., who owns a barber shop, said he would welcome a 25-mph speed limit, and plenty of traffic police. “It has helped in the school zones,” he said. On the other hand, Harrison said 80 percent of his customers drive, so he’s wary of taking away two general lanes.

If commuters switch to MLK Way, that adds east-west traffic to other neighborhoods.

South Henderson Street, which connects Rainier to MLK, offers only two lanes, right alongside South Shore K-8 school. South Othello and South Alaska streets were road-dieted to encourage pedestrians.

On MLK itself, the community has longstanding worries about kids and seniors crossing the broad roadway and Sound Transit tracks.

“We’re very sensitive to that. We’re very mindful of the fact the little girl Zeytuna was hit on MLK,” Curtin said. Zeytuna Edo, age 7, was injured in a hit-and-run crash crossing the street in September, near Rainier Vista, a year after Trevon Crease-Holden, 15, was hit nearby.

The city’s answer? Calm the traffic on MLK Way.

Long ago when it was Empire Way, cars would routinely go 50 mph, while the speed limit now is 35 mph, matching the federally approved speed of Sound Transit trains in the median.

The city is studying signal changes, pavement markings, and narrower lanes there. At the valley’s north end, where MLK and Rainier converge, safety studies are under way to improve pedestrian crossings near Franklin High School and Mount Baker Station, said Curtin.

By the end of this year, he said, drivers are sure to see a new 30-mph speed limit on MLK.

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