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The 3-way street

June 9, 2011 / / 0 Comments

Update June 12, 2011: Added a link to and excerpt from commentary by David Hembrow, a British blogger in the Netherlands.

How does a 3-way street work? Easy, just watch the video.

I like the term “aggressive yield” to describe the situation when a motorist does yield to pedestrians crossing the street, but in a way where they inch forward continually, slowly pushing, with a buffer or air, the people out of the way.

I really like the comment from Tuesday by Anthony Ball:

those red markers are just showing the limits of tolerable risk as established by years of system development. If the collision speeds were higher, those red circles would be far few – it’s simply a system finding its own point of stability.

If you really want to wreak havoc – try to control that system without corrective feedback (eg more rules, lights, controls, etc) and you’ll see the system kill people while it tries to find new stable relationships.

don’t forget that rules, signs, lights, etc have no direct impact on the system – they only work through the interpretation of the users.

What did David Hembrow have to say? David lives in the Netherlands and disagrees with the common sentiment that these conflicts are caused by selfish users.

I don’t see the behaviour at this junction as being about “bad habits”. What I see is simply a very badly designed junction which almost invites people to behave in the way that they do.

Dutch road junctions don’t look like and work like this – they are different for a reason: it removes the conflicts and improves safety. A long-standing theme of Dutch road design is the concept of Sustainable Safety. The concept is to remove conflict so that collisions are rare and the consequences of those which remain are relatively small. Roads are made self-explanatory so that bad behaviour is reduced and the way people behave is changed.

Reading this reminds me of the work of the students in George Aye’s class at SAIC, “Living in a Smart City.” The students attempted, through an intersection redesign, to reduce the stresses that lead to crashes.

Where are the 3-way streets in your city? Grand/Halsted/Milwaukee in Chicago comes to my mind easily. Also a lot of streets in the Loop. Oh yeah, and The Crotch, at Milwaukee/North/Damen.

Chicago catches up to NYC in one 3-day project

June 8, 2011 / / 0 Comments

What were Mayor Daley and the previous Transportation commissioners waiting for when it came installing modern and then-innovative bikeway facilities?

Why have Rahm Emanuel, Gabe Klein, and the Chicago Bicycle Program installed every modern and previously-innovative bikeway treatment under the sun in just three days? The project’s not over, but a lot has happened since Monday.

On Day 3 of construction of the Kinzie Street protected bike lane, CDOT builds (photos from the Bicycle Program’s Flickr photostream):

Bike-only left turn on southbound Milwaukee to Kinzie (perfect)

Through-intersection bike lane using European-style “yield squares” (okay, they’re actually called elephant’s feet)*

Same yield squares (elephant’s feet) at driveways.

Very wide!

New signage telling turning drivers to stop for people walking across the street and riding their bikes.

*I always forget that Chicago created its first through-intersection bike lane at Sheridan and Ardmore, at the north terminus of the Lakefront Trail, to get bicyclists onto the on-street bike lane network.

Bikes on trains, Bremen, Germany edition

June 8, 2011 / / 0 Comments

As part of my “continuing coverage” of how bikes are welcomed (or not) on transit, I’m pointing out how bikes are accommodated on trains in Germany.

My friend and I rode our bikes from central Bremen (the name of the city and its state) to the Valentin submarine pens in the north part of the state (the smallest state in Germany), a 22 miles journey. View an approximation of our route through a rural part of North Germany. The map shows a ferry from the west side of Weser River to the east, which we took. I think it cost 1€ per person, one way.

On our way back we took two trains:

  • A shuttle train, essentially, from Bremen-Farge to Bremen-Vegesack. Operated by NordWestBahn. 18 minutes trip.
  • A Regionalbahn train from Bremen-Vegesack to Bremen Hauptbahnhof (central station). Operated by DB Regio. 23 minutes trip. This trip required an extra ticket, just for the bicycle.

Both trains have designated spaces for bicycles as well as “seat belts” with hooks on the end for wrapping around your bike and then to a pole or to the belt itself.

Bikes on board a train in Bremen, Germany
Our bikes on the first train to Bremen-Vegesack.

Bikes on DB to Bremen
Our bikes on the second train to central Bremen.

What train stations in Germany look like
The train station at our final destination, Bremen Hauptbahnhof (central station).

Find more related photos:

Stony Island cycle track still on, but conflicting reports

June 7, 2011 / / 0 Comments

Update June 9, 2011: At Wednesday’s Mayor’s Bicycle Advisory Council (MBAC), Deputy Commissioner Luann Hamilton reiterated that the Stony Island project was still on and that the long timeline to complete (2014) will be largely because of design reviews and other considerations required when using state and federal funding. She also mentioned that the Chicago Tribune printed a correction in its Wednesday morning paper

The Chicago Tribune wrote about the Kinzie Street protected bike lane on Monday and may have implied at the end of the article that the Stony Island cycle track project, which has earmarked federal funding through the Illinois Transportation Enhancements Program, was canceled (“dropped from consideration”).

On second read, this probably means it was no longer being considered the location for the city’s first protected bike lane. News reports and interviews with city officials put the completion and opening of this protected bike lane in 2014, at the end of Rahm’s first term.

Conflicting reports

In February, Chicago Tribune transportation reporter John Hilkevitch quoted CDOT spokesperson, Brian Steele, saying, “There is already a lot of bicycling on the route, and we envision the cycle track as being a good connection to Jackson Park, the lakefront and the larger bike network in the city.”

Then yesterday, in June, the same reporter wrote, “But the location, chosen mainly because Stony Island has abundant lane capacity, was dropped from consideration because too few bicyclists use the corridor, officials said.” [NBC Chicago reported the same today alongside their video of today’s press conference.]

How many people ride their bikes on Stony Island? What is CDOT’s criteria for choosing protected bike lane locations?

Still on the drawing board

A person rides their bicycle on what will soon be the buffer between the bike lane and parking lane. Flexible delineators, also known as soft-hit bollards, will demarcate the zones.

Bike box, another first on Kinzie Street

June 7, 2011 / / 39 Comments

Update June 7, 2011: CDOT and Mayor Emanuel acknowledge the project with a Tuesday morning press conference. Here’s the press release (that doesn’t reveal anything we don’t already know) and photos from the event. NBC Chicago has video from the press conference (2:27).

A bike box is a well-marked area where bicyclists can queue at signalized intersections ahead of cars, a way to get ahead and make bicyclists more visible to drivers. The Chicago Department of Transportation (CDOT) installed one Tuesday morning, on Day 2 of the Kinzie Street protected bike lane project (read about Day 1). I asked a CDOT worker if it will be painted green or another color and they replied it would probably would. It appears that the design for the project is still being done while construction proceeds. I expect a section of the next block will be worked on tomorrow.

See a bike box in Portland.

More new information about this project

CDOT was also grinding out pavement markings on Kinzie Street in front of Jewel-Osco, where the CDOT worker explained a left-turn lane would be created for westbound travelers (matching the left-turn lane in the eastbound direction next to the bike box).

The uphill bike lane will not be protected. Chicagoist commenter BlueFairline pointed out a conflict with trucks delivering goods via hose to the Blommer chocolate factory. The truck needs to be curbside. Today confirmed how this would work out.

Lastly, the CDOT worker could not confirm if there will be a bike-only left-turn lane on southbound Milwaukee at Kinzie Street, as I suggested earlier.