Tag Archive: SDOT

Save Lives & Keep Moving: Seattle’s Successful Safety Redesigns

Road Diet Save Lives & Keep Moving

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Cathy Tuttle
February 15, 2015

If you think a “road diet,” or safety redesign, will slow you down, think again.

Walking in Seattle blogger Troy Heerwagen poured through data from a half dozen Seattle Department of Transportation (SDOT) evaluation reports and found huge benefits for everyone using our shared public right-of-way.

SDOT engineers have learned smart new techniques to make high-capacity streets safer and more efficient. After a safety redesign, streets still carry as many vehicles as they did prior to their road diet. If fact, our streets are in better shape and can take on even more vehicle volume after a safety redesign. Another benefit? Aggressive speeding, the kind of behavior that kills people, falls dramatically. And not surprisingly, collisions and crashes of all sorts drop precipitously too.

Since safety redesigns are often a matter of mainly repainting travel lanes, they are also one of the quickest and least expensive road safety improvements around.

We call that a great investment in our future!

Check out Troy’s work in this Tableau-generated infographic.

Safe Routes To School Community Forum North Seattle

Come to the community forum about providing Safe Routes to Schools in Central-North Seattle January 20 2015

Wildcat Way Opening July 2014Hear presentations by Seattle Department of Transportation on its efforts to create Safe Routes to Schools and by Seattle Neighborhood Greenways on its efforts to support safer and more pleasant streets.

PARTICIPATE in an interactive workshop where we gather around maps to:

Tuesday Jan. 20, 2015
6:30 – 8:00 PM
North Seattle College Cafeteria Read the rest of this entry »

Three Lessons from Riding Every Greenway in Seattle

Originally published April 18, 2014
By Jacob Ostrowsky

Jefferson Park entrance from Beacon Hill Greenway

Jefferson Park entrance from Beacon Hill Greenway

What happens when you ride every greenway in Seattle?  Over the course of several weeks, I did exactly that and came away with a deeper understanding of how far we have come…and what the Seattle Department of Transportation (SDOT) needs to do to realize the full potential of greenways.

First of all, I didn’t just ride every greenway.  I rode them, I walked them, and in some cases I drove them.  I went from one end to the other and back again.  I observed every sign, every speed hump, every pavement marking, and every piece of physical infrastructure, and I took notes along the way.

I took my wife and 11 year old son along for the ride and recorded their impressions, as well.

What did I find?  First of all, it’s clear SDOT knows how to build greenways now.  After a rough start that gave us the Wallingford Greenway — an embarrassment by any measure — SDOT is building greenways roughly on par with current practice in other cities.  Early on, it seemed like Seattle was going to fully recapitulate Portland’s entire painful evolutionary process.  Instead of simply picking up where Portland left off, SDOT apparently needed to re-live their mistakes.  It was maddening to those of us who understood how greenways work.  Fortunately, though, we’re past that and we have nothing but love for our friends at SDOT.  Bygones.

That doesn’t mean we don’t still have things to learn here in Seattle.  So here are three lessons for SDOT that become readily apparent when you ride every greenway.

1.  Break the Silos

Many greenways pass alongside beautiful parks seemingly oblivious to their proximity.  No curb cuts, no park entrances welcoming people along the greenway.  A greenway has the potential to link and extend the reach of Seattle’s park system.  A park should be an extension of the greenway network and vice versa.  Similarly, many greenways pass through creek protection and Combined Sewer Overflow (CSO) reduction opportunity areas without addressing green stormwater infrastructure.  SDOT needs to do a much better job collaborating with Seattle Parks & Recreation and Seattle Public Utilities to truly green our greenways.  The portal from the Beacon Hill greenway to Jefferson Park (shown above) is a rare and welcome exception.  It needs to become the rule.

2.  Focus on User Experience

SDOT can be ham-handed when it comes to roadway design.  There is no doubt Seattle’s streets are built to engineering spec but they are not always intuitive to end users.  Many places end up being awkward or puzzling to people like you and me.  A few examples on greenways:

  • The offset arterial crossing at 32nd Avenue NW along the Ballard Greenway forces cyclists to merge into a standard 5’ bike lane at a 90 degree angle.  It may look fine on a schematic but, as a user, it’s puzzling.
  • There are numerous instances of 20 mph signs placed right at the corner of an arterial entrance to a greenway.  Motorists focused on making the turn will likely pass the sign unnoticed.
  • At various locations, you will see pedestrian half-signals installed without beg buttons accessible to cyclists or beg buttons located on the left side of the street only.  I witnessed a woman on a cargo bike fully loaded with groceries struggle awkwardly to activate one of these signals.  It wasn’t pretty.  Do we make drivers park and get out of their cars to activate signals?  We do not.
  • We seem to like diverters made from paint instead of concrete.  A diverter is intended to prevent motor vehicles from turning onto a greenway.  It is possible SDOT is focused on compliance rates but there is a big difference in the perception of safety provided by an actual physical concrete curb versus a painted (and soon to be faded) indicator.

 3.  Err on the Side of Safety

In numerous cases, SDOT appears to err on the side of caution: caution for the need of motor vehicles to flow swiftly.  Just once, they should err on the side of caution for the safety of pedestrians and cyclists ages 8-80.  Examples:

  • The Andover “raised crosswalk” on the Delridge Greenway is intended to protect pedestrians in the crosswalk but the raised portion is barely perceptible.  If we truly want to protect vulnerable users, we can learn a lesson from certain mall parking lots and give people a real raised sidewalk.
  • Arterial crossings along greenways seem to have the minimum acceptable treatment.  Ride the Ballard Greenway and you will wish the crossing at 14th was as good as the one at 32nd.  Similarly, you will wish the crossing at 32nd was as good as the one at 24th and you will wish the crossing at 24th was as good as the one at 15th.  Just once, let’s make err on the side of favoring pedestrians.
  • The same is true for diverters and medians.  At the arterial crossing of Beacon Avenue South at South Hanford Street, a median and pedestrian half-signal were added but the motor vehicle diverter is only sign-based with no physical barrier.  It is unclear why the median wasn’t extended slightly to serve as a physical diverter.  It’s as if SDOT is saying to motorists, “Don’t cross here, but in case you do, we made a nice cut through the median to make it easier to disobey the signs.”

In spite of these gentle observations, SDOT’s trajectory is, without a doubt, solidly upward.  Quality is improving and the results are readily apparent.  These essential greenway corridors, currently scattered across the city, are gradually coalescing into a linked network promising greater safety for those who choose to travel under their own power.  As we continue to work with SDOT, Seattle Neighborhood Greenways is dedicated to making this network a reality, one that sets a standard for quality that other cities will strive to match.

 

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