Green era means we should rethink traffic priorities

Today in the Seattle Times:

Seattle is seeking possession of a popular boating-supply store along Mercer Street, even though the city remains $88 million short of the funds it needs to carry out a street reconstruction project there.

West Marine is to be condemned and torn down to make room for a 60- to 70-foot road widening along Mercer Street in an area commonly called the "Mercer Mess," according to the city's plan.

...private contributors won't commit money for the project until Seattle secures the right-of-way. Of the missing $88 million, the city is negotiating to get $36 million from nearby businesses that would benefit from the $201 million rebuild.

. . .

For two generations, commuters have complained about the Mercer Mess between Interstate 5 and Seattle Center. The city plans to add lanes for two-way travel on Mercer, which now goes eastbound to I-5. Valley Street, now an arterial, would be reduced to two lanes.

A study for the Seattle Department of Transportation predicts that drivers would save minutes leaving I-5, because they would gain a straight route on Mercer westbound, instead of navigating a curve to Valley. Overall, there would be little change in congestion, the study says; but bicycling and walking conditions would improve greatly, while landscaping would make the area more pleasant.

Source

Am I understanding this right? The city wants to spend $201 million on this 10-block stretch so drivers can save a few minutes? That's the sole benefit traffic-wise, because there would be no congestion reduction. Let's make a ledger.

Benefits	Costs ($201 million)
Cars: Drivers save a few minutes	Congestion continues at same level
Non-motorized: Improved walking, biking	generally $1 million per block, including curbs and drainage
Other: Nice landscaping	Businesses: Loss of strong retailer; $36 million

Anyone see anything wrong here? Try taking off your Car Culture Hat. How about now?

That's right: Although I'm mixing qualitative and quantitative, the costs for the automobile portion is the biggest, maybe $150-155 million, while returning the littlest benefit -- a few minutes per driver.

Want to reduce congestion? Want to make the transition away from the car culture? THEN STOP FACILITATING IT. Spend $10 million on non-motorized transportation on Mercer, and a few more million on landscaping and trees. Mandate Low Impact Development to protect Lake Union.

Road-diet what's there now, and maybe you'll get more people biking and taking Metro and the S.L.U.T. (and North Link whenever that's supposed to happen).