Tag: Bicycling

I want to make a crash reporting tool

November 30, 2010 / / 0 Comments

UPDATE 12-01-10: Thank you to Richard Masoner for posting this on Cyclelicious. I have started collecting everyone’s great ideas and responses in this development document.

Hot off the heels of making my “Can I bring my bike on Metra right now?” web application, I am ready to start on the next great tool*.

I want to create a bicycle crash reporting tool for Chicago (but release the source code for any city’s residents to adopt) along the lines of B-SMaRT for Portlanders and the Boston Cyclist’s Union crash map based on 911 calls.

I’d rather not reinvent the wheel (but I’m very capable of building a new web application based in PHP and MySQL) so I’ve been trying to get in contact with Joe Broach, the creator of B-SMaRT, to get my hands on that source code.

Not exactly the type of crash I’ll be looking for. Photo by Jason Reed.

I want the Chicago Crash Collector (please think of a better name) to have both citizen-reported data, and data from police reports. I just sent in my FOIA request for police data to the Chicago Police Department, but I’m not holding my breath for that.

New bike shopping

November 22, 2010 / / 0 Comments

I know it’s winter time, and it took 2 hours, but it was worth it.

The showroom at Working Bikes Cooperative expanded after their move to 2434 S Western Avenue, giving my sister a lot of choices to peruse. She needed a new bicycle. Her current one had poorly working brakes, wheels in bad condition, and lacked features every urban bike should have: a way to protect the rider from puddles, snow and wet pavement; a way to carry stuff; an appropriate number of gears; a way to protect the rider’s pants from grease and getting them caught in the gear.

Over 50 bikes for sale right now, along with countless parts like seatposts, brakes, handlebars, fenders, and chain guards.

Working Bikes had road bikes, hybrid bikes, mountain bikes, and vintage cruiser bikes from Huffy, Schwinn, Miyata, Nishiki, Trek, and Schwinn. It’s no wonder Schwinn dominates – their bikes were made in Chicago for decades after the company started here. Bikes are still made under that name, and even though the quality may not be the same, the brand still has power and relevancy.

After walking around the showroom several times where I pointed out my preferred bikes for her (3-speed cruisers) and asking her questions, she selected, on her own, a Schwinn 3-speed cruiser that had been spray painted black. I supported the choice as it also had fenders (this helps keep the bike and the rider free of snow) and a chain guard (yay).

She talked to a staff member about test riding the bike and went off down 24th Place. She said of the ride, “I felt like I was cheating on Big Blue but it felt soo right.”

She bought a black Schwinn – not pictured. The day’s rain didn’t stop us.

I test rode the bike to ensure it was in working order. After more than twenty years, the internal gear hub still works – but I completely expected this.

I found a used Wald quick release basket and after showing my sister how easily it attached and detached, she was sold. The manager priced it on the spot at $10. When new it costs about $19. I pointed out the oddly short rear fender so my sister picked out a long blue one from a parts bin that the manager priced at $5. The blue was for flare. And finally, we found a slightly longer seatpost for $1. After tax, my sister’s new urban-appropriate bicycle came out to $119.

Our journey took two hours because it first took us longer than 30 minutes to get there as we yubered there on my Mundo. After she test rode the black one, I wanted her to test ride another Schwinn that came with an already long rear fender and had different gear ratios. I don’t remember how long it took us to get home, but we enjoyed some pan fried veggies and pasta when we arrived.

Related: Working Bikes Cooperative, which uses profits to send rebuilt bicycles to poorer countries, blended with West Town Bikes, a learning bike shop, gives you B.I.C.A.S. in Tucson, Arizona.

Frequency of Chicago women riding their bikes to work is down

November 9, 2010 / / 50 Comments

UPDATE: I added data from years 2005-2007 to complement existing 2008-2009 data in Table 1 as well as a visual representation. I have also added data from the 3-year estimates to Table 2.

UPDATE 01/20/11: Added the most recent 3-year estimate that the Census Bureau released in January 2011 to Table 2.

In September 2009, I wrote about “what the Census tells us about bicycle commuting” and a couple of days ago I compared Chicago to Minneapolis and St. Paul.

I want to update readers on the changes between the 1-year estimate data reported in that article (from 2008) and the most recent 1-year estimate data (from 2009). Percentages represent workers in the City of Chicago aged 16 and older riding bicycles to work.

Table 1 – Bicycling to work, 16 and older, 1-year estimates

Year Total MOE Male MOE Female MOE
2005 0.7% +/-0.1 0.9% of 621,537 +/-0.2 0.4% of 541,013 +/-0.1
2006 0.9% +/-0.2 1.2% of 645,903 +/-0.3 0.7% of 563,219 +/-0.2
2007 1.1% +/-0.2 1.4% of 656,288 +/-0.3 0.7% of 574,645 +/-0.2
2008 1.0% +/-0.2 1.5% of 657,101 +/-0.3 0.5% of 603,640 +/-0.2
2009 1.1% +/-0.2 1.8% of 651,394 +/-0.3 0.4% of 620,350 +/-0.1

View graph of Table 1. MOE = margin of error, in percentage points.

We should be concerned about the possible decrease in the percentage of women riding bicycles to work, especially as the population size increased. The margin of error also decreased, thus suggesting an improvement in the accuracy of the data. There have already been many discussions (mine, others) as to why it is important to encourage women to ride bicycles and also what the woman cycling rate tells us about our cities and policies. If the decrease continues we must discover the causes.

But Table 1 doesn’t tell the full story.

As Matt points out in the comments below, the number of surveys returned for 1-year estimates is smaller than that from the Decennial Census. Therefore, I took a look at the two 3-year estimates available, each having a larger sample size than the 1-year estimates (see Table 2). The data below seem to show the opposite change than seen in Table 1: that the number of women bicycling to work has increased. The crux of our quandary is sample size. The sample size is the number of people who are asked, “How did this person usually get to work LAST WEEK?”

Table 2 – Bicycling to work, 16 and older, 3-year estimates

Click header for data source 2005-2007 2006-2008 2007-2009
Total workers 1,203,063 1,230,809 (+2.31%) 1,291,709 (+4.71%)
Males bicycling to work 7,549 9,014 (+19.41%) 11,014 (+18.16%)
Females bicycling to work 3,474 3,741 (+7.69%) 3,542 (-5.62%)

The number of discrete females who bike to work has decreased in the most recent survey (2007-2009) while the total number of workers 16 and older has increased, giving females bicycling to work a smaller share than the previous survey (2006-2008). We must be careful to also note the margin of error for females bicycling to work is ±499.

Matt suggested that sustainable transportation advocates “push for higher sampling” to reduce “data noise” and increase the accuracy of how this data represents actual conditions. I agree – I’d also like more data on all trips, and not just those made to go to work. Household travel surveys attempt to reveal more information about a region’s transportation.

One of the two overall goals of the Bike 2015 Plan is “to increase bicycle use, so that 5 percent of all trips less than five miles are by bicycle.” Unfortunately, the Plan doesn’t provide baseline data for this metric, but we can make some inferences (there will probably be no data for this in 2015, either). The CMAP Household Travel Survey summary from 2008 says that the mean trip distance (for all trips) for Cook County households is 4.38 miles (under five miles). The same survey says that for all trips, 1.3% were taken by bike. These can be our metrics. *See below for men/women breakdown. Note that no data for “all trips” exists for the City of Chicago.

We will not achieve the Bike 2015 Plan goal unless we do something about the conditions that promote and increase bicycling. Achieving the goals in the Bike 2015 Plan is not one group or agency’s responsibility. The Plan should be seen as a manifestation of what can and should be done for bicycling in Chicago and we all have a duty to promote its objectives.

Please leave a comment below for why you think the rate of women who bike to work has stayed flat and decreased, or what you think we can do to change this. Does it have to do with the urban environment, or are the reasons closer to home?

*The same survey also said: Cook County males used the bike for 1.9% of all trips. Cook County females used the bike for 0.8% of all trips.

Table 1 data comes from the 1-year estimates from the American Community survey, table S0801, Commuting Characteristics by Sex for the City of Chicago (permalink), which is a summary table of data in table B08006. Table 2 data directly from American Community Survey table B08006.

Bike lane news around the country

November 8, 2010 / / 0 Comments

In other bike lane news around the country:

  • Kansas City, Missouri, now has two bridges with separated and protected bike lanes. A concrete barrier separates a combined walking and biking path from traffic.
  • Chicago’s door lane network grows a little more with new door lanes on Grand Avenue and Illinois Street. Downtown is in the most need of bike lanes so these should be useful (although I advocate for ones going through the Loop).
  • Separated bike lanes again under attack in New York City, this time on Columbus Avenue. It was only installed in August.
  • Washington, D.C., installed bike boxes and contraflow bike lanes (in August 2010) on a diagonal street at a six-way intersection (we have tons of six-way intersections in Chicago). John Allen, notable for his stance on bikeways and how they conflict with traffic engineering principles, approves of the design. In theory, contraflow bike lanes next to parallel parking lanes are good (and better than door lanes) because (1) the door to open is the passenger’s door, which opens less often than the driver’s door; (2) the person opening the door and the person riding the bike are staring at each other; and (3) if a person riding a bike collides with the door from the oncoming direction, the collision should be less damaging  to the person riding the bike. (You can thank former Mayor Adrian Fenty and former transportation commissioner Gabe Klein, and their staff, for these improvements to the bikeway network.)

The new door lanes in Chicago on Grand Avenue (as well as Illinois Street) involved a road diet, the narrowing or removal of main traffic lanes. You can see how a lane was removed – the stripes demarcating the two lanes have been ground out. This may reduce traffic speed and reduce confusion and collisions, a welcomed change. Watch a video of the bike lane striping being applied.

In Washington, D.C., a unique and adapted bike lane design for a diagonal street where it crosses two other streets at a six-way intersection. Another way to demonstrate what a bicycle lane could do.

Chicago’s first protected bike lane!

November 5, 2010 / / 0 Comments

UPDATE 04-28-11: I’ve written new articles about this subject. The first is “Put the first cycle track somewhere else.” Then there’s my list of proposed protected bike lane locations.

Chicago just got its first two-way protected bike lane! And all because of a construction detour for the next 17 months!

I’m sort of joking, but sort of not.

This detour from the Lakefront Trail onto a street for 100 feet should give Chicagoans a taste for what a protected bike lane looks like, until April 2012. You can see it’s quite simple to build: shift traffic over, install K-rail concrete barriers, paint a dividing line. But what’s simple to build is not always simple to implement.

But how can we get a real one constructed?

It’s not for lack of demand. But it could be that our demand for a safer bike lane is not well known.

The Chicago Bicycle Program has “proposed” a buffered bike lane on Wells Street (by merely displaying a rendering of it on the backside of a “public meeting” handout). They have no released any further information about this. It would most likely be paid for with Alderman Reilly’s Menu Program funding. (Each alderman gets $1.3 million annually to spend at their discretion and he spent some of it on new bike lanes on Grand Avenue and Illinois Street.)

Contact the Alderman to let him know you want to be able to bike more safely on Wells Street into downtown. And make sure he and the entire Department of Transportation (CDOT; contact Commissioner Bobby Ware) know that people who ride bikes want to be involved in its design; when it comes to informing the public, CDOT has a lot of room for improvement. They could do this by being more timely in providing project updates, like the status of awarding contracts or starting construction on streetscape projects (the website lists the names and locations, but no other information). A major project missing is the Lawrence Avenue streetscape and road diet between Ashland and Western.

Other streets in Chicago are ripe for protected bike lane similar treatment. Can you suggest some places? I’ll keep a list here where we can debate the pros and cons of each location. Through an educated and data-supported campaign, we can advocate for the best locations at which protected bike lanes should be installed.

The new two-way protected bike lane in Chicago on a Lake Shore Drive offramp. More photos.

The Sands Street bikeway becomes protected as you ride closer to the Manhattan Bridge ramp. More photos of biking in New York City.

Protected bike lanes are all the rage in New York City. They have several miles of buffer and barrier separated bike lanes. Portland, Oregon, also has a diversity of protected bikeways. Minneapolis has several miles of off-street trails going to and through neighborhoods (which is why they’re key to the overall network).