Category: Street Design

What Complete Streets means to DOTs: the case of widening Harrison Street

September 5, 2013 / / 28 Comments

What Harrison Street looks like in 2013, replete with additional lanes and no “bicycle ways”. 

The Chicago and Illinois Departments of Transportation completed a project in 2012 to rebuild the Congress Parkway bridge over the Chicago River and build a new interchange with Lower Wacker Drive. It also rebuilt the intersections of Harrison/Wacker and Harrison/Wells.

Harrison prior to the project had two striped travel lanes (four effective travel lanes) but now has six travel lanes (including two new turn lanes). Bicycle accommodations were not made and people who want to walk across the street at Wacker and Wells must now encounter a variety of pedestrian unfriendly elements:  they must use actuated signals (waiting for a long time), cross long distances or two roadways to reach the other side, avoid drivers in the right-turn channelized lane, and wait in expressway interchange-style islands. Additionally, Wells Street was widened and all corner radii were enlarged to speed automobile traffic and presumably to better accommodate large trucks.

That is how IDOT interprets its “complete streets” law (which took effect on July 1, 2007) and how CDOT interprets its “complete streets” policy (decreed by Mayor Daley in 2006). The full text of the Illinois law, known as Public Act 095-0665, is below:

AN ACT concerning roads.

Be it enacted by the People of the State of Illinois,
represented in the General Assembly:

Section 5. The Illinois Highway Code is amended by adding
Section 4-220 as follows:

(605 ILCS 5/4-220 new)
Sec. 4-220. Bicycle and pedestrian ways.
(a) Bicycle and pedestrian ways shall be given full
consideration in the planning and development of
transportation facilities, including the incorporation of such
ways into State plans and programs.
(b) In or within one mile of an urban area, bicycle and
pedestrian ways shall be established in conjunction with the
construction, reconstruction, or other change of any State
transportation facility except:
(1) in pavement resurfacing projects that do not widen
the existing traveled way or do not provide stabilized
shoulders; or
(2) where approved by the Secretary of Transportation
based upon documented safety issues, excessive cost or
absence of need.
(c) Bicycle and pedestrian ways may be included in pavement
resurfacing projects when local support is evident or bicycling
and walking accommodations can be added within the overall
scope of the original roadwork.
(d) The Department shall establish design and construction
standards for bicycle and pedestrian ways. Beginning July 1,
2007, this Section shall apply to planning and training
purposes only. Beginning July 1, 2008, this Section shall apply
to construction projects.

Section 99. Effective date. This Act takes effect July 1,
2007.

Here is the case: a “bicycle way” should have been incorporated into the Harrison/Congress/Wells modification.

Here is the evidence:

  1. The project location is a transportation facility in the State
  2. The project location is in or within one mile of an urban area.
  3. The project widened an existing traveled way, from 52 feet (two marked travel lanes, four effective travel lanes) to approximately 64 feet (six marked travel lanes).
  4. Local support for bicycle and pedestrian ways is evident; see the “Streets for Cycling Plan 2020” planning process and the addition of a concrete deck (to reduce bicycling slippage) on the sides of the Harrison Street bridge over the Chicago River approaching the project location.
  5. The project was constructed after July 1, 2008.

The missing piece of evidence, though, is whether or not the Secretary of Transportation, based upon documented safety issues, excessive cost or absence of need, made an exception for this project.

The Chicago “complete streets” policy is less specific than the Illinois “complete streets” law, printed below:

The safety and convenience of all users of the transportation system including pedestrians, bicyclists, transit users, freight, and motor vehicle drivers shall be accommodated and balanced in all types of transportation and development projects and through all phases of a project so that even the most vulnerable – children, elderly, and persons with disabilities – can travel safely within the public right of way.

One of the examples CDOT gives on how this policy can be implemented is “Reclaim street space for other uses through the use of ‘road diets’ e.g., convert 4-lane roadway to 3-lane roadway with marked bike lanes” – they accomplished the opposite on Harrison Street.

In a 2010 traffic count, 16,800 cars were counted here, an amount handled by roads with fewer lanes and less than the amount in CDOT’s guidelines for implementing road diets and narrowing a road from 4 lanes to 2, yet in 2012, the agencies increased capacity.

Before: An aerial view from November 7, 2007. Image from Google Earth’s historical imagery feature. These two images represent the same zoom and area so you can compare the land changes from before to after the infrastructure modification. 

After: An aerial view from April 4, 2013. Image from Google Earth. Notice the additional lanes, roadway width, land taken south of Harrison Street, and the widened intersection at Wells with increased curb radius. 

Dutch biking is better than all other kinds

August 5, 2013 / / 0 Comments

Yonah Freemark, famous person behind The Transport Politic and now a semi-famous person at Metropolitan Planning Council (shut down the Illiana, Yonah!), needed a ride from the Damen Blue Line station for a special Vancetour of the Bloomingdale Trail. The Dutch way of biking is extremely social, both because of the way bicycles are built and the way the infrastructure is built. That style is rare in America, and even downright anti-social and hostile in many places. For starters, there’s not enough room to ride side-by-side (in Chicago it’s illegal outside of too-narrow bike lanes).

The WorkCycles Fr8, my main bicycle, is built like a tank. Some may call it the Mercedes G-Class SUV of bicycles. I called it a Cadillac to some guy outside City Hall – referring to how comfortably it rides – and he said “They suck, it’s a Mercedes.” (He was German and I don’t think either of us knew any Dutch car manufacturers.)

Thank you, Ryan Lakes, for the photos.

Revealing driver behavior on Clark Street with a radar gun

July 30, 2013 / / 2 Comments

People prefer to cross Clark Street at Menomenee Street in groups of unacquainted individuals.

This is a more detailed post of the one at Streetsblog Chicago.

On the overcast morning of Friday, May 4, 2012, I recorded the speeds of 412 cars at four locations along Clark Street in Old Town and Lincoln Park for 15 minutes at each location. I missed counting the speeds of 42 cars. The embedded map shows the locations and some basic statistics.

What did I find? There’s a relationship between street width and the speed people drive. The highest speeds were found on the widest portions, and the lowest speeds on the narrowest portions. However, this basic study is far from scientific. A better study would record the locations simultaneously (necessitating 4 radar guns), calibrated equipment, consistent training for the researchers on data collection methods, a longer recording duration, and comparison to a control street that had a uniform width at four locations.


View Radar gun places on Clark Street in a larger map

1. Southbound Clark Street at Germania Place

My assistant and I set up the radar gun and camera immediately south of Sandburg Terrace and pointed the radar gun at people driving southbound on Clark Street between a row of parked cars at the concrete median (pedestrian refuge island). Classes would start soon at the Latin School on the east side of Clark Street. Compliance with state law requiring drivers to stop for pedestrians in the crosswalk was weak, to say the least, but compliance wasn’t explicitly measured.

  • Average speed: 17.21 miles per hour (MPH)
  • Maximum speed: 30 MPH
  • Cars measured: 151
  • Speed limit: 30 MPH
  • Drivers exceeding the speed limit: 0
  • Width: 224 inches (from west curb to pedestrian refuge island)
  • Effective width: 140 inches (excludes parking by subtracting 7 feet)
  • Crashes: 35, of which 4 were bicycle, and 3 were pedestrian.

Only one car-car crash (actually a 3 car crash) produced an injury. What’s interesting about this location is that in a lot of the crashes, the cars were traveling in the same direction. There’s a lot of school drop off and pick up activity here for Latin School of Chicago students, so it could be that many people are pulling away from the curb to merge into traffic and collide.

2. Northbound Clark Street at Menomenee Street

  • Average speed: 30.83 miles per hour (MPH)
  • Maximum speed: 50 MPH
  • Cars measured: 121
  • Speed limit: 30 MPH
  • Drivers exceeding the speed limit: 53.72%
  • Width: 395 inches (from east curb to dividing line). This includes the parking lane but no cars were parked within 50 feet, north and south, of the measurement location.
  • Crashes: 20, of which 2 were bicycle, and 1 were pedestrian. Many of the non-bike and non-ped crashes involved a parked car or taxi. The only injuries experienced were by the 2 cyclists and 1 pedestrian.

3. Northbound Clark Street at Lincoln Park West

We stood on the “pie” (traffic island) that separates northbound Clark Street traffic from northbound Lincoln Park West traffic to measure the traffic driving on Clark Street between the pie and the concrete median separating it from southbound Clark Street.

  • Average speed: 25.60 miles per hour (MPH)
  • Maximum speed: 40 MPH
  • Cars measured: 58
  • Speed limit: 30 MPH
  • Drivers exceeding the speed limit: 27.59%
  • Width: 252 inches (from concrete median curb to west curb on the pie)
  • Crashes: 4, of which 1 was bicycle, and 2 were pedestrian.

4. Northbound Clark Street between Lincoln Park West and Dickens Avenue

This location is 125 feet north of the previous location.

  • Average speed: 22.54 miles per hour (MPH)
  • Maximum speed: 35 MPH
  • Cars measured: 58
  • Speed limit: 30 MPH
  • Drivers exceeding the speed limit: 2.44%
  • Width: 264 inches (from east curb to dividing line).
  • Effective width: 180 inches (excludes parking by subtracting 7 feet)
  • Crashes: 0

Me measuring speeding drivers on Clark Street with the speed gun, my clipboard and paper, and a GoPro camera to record the speeding drivers and the results on the speed gun. 

Bike Walk Lincoln Park’s proposal

In 2011, Michelle Stenzel and Michael of Bike Walk Lincoln Park published a document to “Make Clark a Liveable Street“. The first two pages show an aerial photo of the same section of Clark Street where I measured automobile speeds, North Avenue and Armitage Avenue. On the first page, existing conditions are laid out. The second graphic shows proposed improvements.

At Menomonee Street, measurement location 2, the document says “pedestrians must cross 6 lanes with no safe haven”, a width of just under 66 feet. In the later pages, the first existing condition is blatant: “Wide lanes of auto traffic moving at speeds in excess of the speed limit”. My analysis in May demonstrates this.

How does BikeWalk Lincoln Park propose to “transform this stretch from a car-oriented ‘super-highway’ to a people-oriented liveable street”? By installing protected bike lanes, putting the street on a diet, and installing new and well-marked crosswalks among other ideas.

Width and speed summary

Ordered by location:

  1. 224/140 inches. 0% of drivers exceeded 30 MPH speed limit
  2. 395/395 inches. 53.72% of drivers exceeded 30 MPH speed limit
  3. 252/252 inches. 27.59% of drivers exceeded 30 MPH speed limit
  4. 264/180 inches. 2.44% of drivers exceeded 30 MPH speed limit

Ordered from narrowest to widest to see how width relates to speed:

  • 224/140 inches. 0% of drivers exceeded 30 MPH speed limit
  • 264/180 inches. 2.44% of drivers exceeded 30 MPH speed limit
  • 252/252 inches. 27.59% of drivers exceeded 30 MPH speed limit
  • 395/395 inches. 53.72% of drivers exceeded 30 MPH speed limit

Notes

Crash data is within 100 feet to avoid the overlap of the final two locations, which were 125 feet apart. Crash data comes from the Illinois Department of Transportation for 2005-2010. The Bushnell Velocity Speed Gun was borrowed for this analysis. The radar gun was filmed to show a speeding car and its speed simultaneously. The video below shows a driver traveling at 50 MPH in a Children’s Safety Zone (as it’s within 1/8 mile of a park, Lincoln Park, making it eligible for automated speed enforcement).

Curiously, no traffic counts have been collected on Clark Street near any of the count locations.

View the video on Vimeo.

Screenshot of traffic count website. Go to the Traffic Count Database System and search for “1700 N Clark Street, Chicago, IL” in the map. 

Updating street life on Milwaukee Avenue

May 19, 2013 / / 16 Comments

Photo of the new on-street bike parking corral at Revolution Brewing (2323 N Milwaukee Avenue) in Logan Square, less than 10 hours after being installed. 

First, Revolution Brewing now has 20 (or more) new bike parking spaces in what used to hold about two cars. Kudos to that awesome restaurant and brewery for working through the arduous process with the Chicago Department of Transportation and Alderman Moreno (who likely helped with the transfer of the metered car parking spaces). CDOT’s Scott Kubly admitted to having a bad process for businesses who want to install their own bike parking.

Wicker Park-Bucktown SSA had issues after the first round of bike racks we* installed in 2011. We donated the bike racks to the city for them to install at mutually agreeable locations at which they marked the spot for the contractor. We wanted to repeat the process in 2012 and bought the racks but they couldn’t be installed because CDOT, accepting the racks as donations in 2011 said that that wasn’t the right process and couldn’t do it again. So they had to figure out a new process. The racks were manufactured and delivered in 2012 to CDOT but weren’t installed until April 2013. Before the fix came in April 2013, we were going to have to go through the most basic process of buying a permit for each one (for $50) and then pay to have them installed ourselves.

The fix was great for the SSA, and I’m glad CDOT was able to make it happen: they got IDOT to amend the existing bike parking contract to allow the contractor to install non-city-paid-for bike racks. (This was the issue for the 2011 racks.)

Second, I’m proposing that private automobile traffic be banned on Milwaukee Avenue from Paulina Avenue to Damen Avenue. It would be better for the residents, and the businesses, and would encourage more cycling in the neighborhood, as well as surrounding neighborhoods having residents who would bike on Milwaukee Avenue if it was safer (there’s a big dooring and general crash issue). I reference the single, car-free block on Nørrebrogade in Nørrebro, Copenhagen, Denmark. One single block (plus bikeway and pedestrian-way improvements on the other blocks) and car traffic goes down but bus and bike traffic go up.

What Milwaukee Avenue looks like every afternoon. 

What Milwaukee Avenue could look like every afternoon. 

* I volunteer on the transportation committee, since about May 2011.

Where does this road diet rule come from?

April 17, 2013 / / 14 Comments

55th Street road diet from summer 2012. This is the best road diet photo I’ve got. Traffic counts here indicate 15,700 cars daily (based on a single day of measurement in 2006).

“Roadways with Average Daily Traffic (ADT) of 20,000 or less may be good candidates for a road diet and should be evaluated for feasibility”, via FHWA. The documents – here’s the second one – I’ve found so far on FHWA’s website don’t explain the research behind this assumption. How should a road be evaluated for feasibility? The second one bases review of a street on crash type, severity, and rate.

View 4600 W Foster Avenue in a larger map. Alderman Laurino is correct in her description of how many lanes are here. The road is only striped for 1 lane in each direction.

This concerns me because CDOT seems to have adopted this as a policy. They are using it as a reason to not consider a road diet on Foster Avenue. However, though, Foster Avenue between Pulaski Road and the Edens Expressway has only “1 and a half lanes” in each direction, according to local Alderman Marge Laurino of the 39th Ward (see John Greenfield’s interview below, which is an expanded version of one published on Grid Chicago in two parts).

Interview

Greenfield: Where in your ward would you like to see speed cameras installed?

Laurino: Well right now I don’t know that we have locations that would fit some of the criteria that we’re looking at. Currently I think the ones that they’re putting in are going to be where there have been pedestrian fatalities and I don’t know that I have anything that fits that really strict criteria but I would… Just a suggestion, Foster Avenue in front of Gompers Park. I mean it’s often times an area where cars really speed because for whatever reason, where there are no homes and that and it’s just wide-open parkland people just seem to hit the accelerator. I don’t know why that it but it appears to be the case.

JG: Is that a long stretch with no stoplights?

ML: From Pulaski to Cicero it’s a long stretch and it’s not one lane. I want to call it one-and-a-half lanes. There really shouldn’t be two lanes of traffic going in one direction but they seem to squeeze that in. So anyway that might be a potential place for a camera. We’re also looking at something called a road diet, where we just, through paint markings and paint striping, make the street narrower. That would be on Foster Avenue, let’s say between central Park and Cicero.

JG: Is there any talk of putting in bike lanes there to take up the extra space?

ML: No, for whatever reason it doesn’t fit their criteria.