Wednesday, November 16, 2011

Vestavia Hills to pay Redflex to "study" the need for red light cameras (RLC)

In a Birmingham News article Monday, Nov. 14, it was reported that the Vestavia Hills city council was going to vote on whether to allow the mayor to negotiate a contract with Redflex Traffic Systems to "study" the city's traffic and determine if the city could benefit from Redflex product(s).

Fire Redflex
Here's a peek into the future: yes, Redflex will determine that Vestavia Hills needs to buy their product(s).

I tried four times, unsuccessfully, to post a comment to the story on, so I'm going to share my initial thoughts below:


Unfortunately for Council President Rice, these cameras won't affect stop sign intersections. I believe her comments reflect the depth of her understanding of this issue. [the article quoted Ms. Rice as saying "I can tell you we do (have a problem with drivers running red lights and speeding) because I was almost killed pulling into my subdivision the other day when some guy ran the stop sign."]

If you lengthen the duration of the yellow lights at least by .5-1.5 seconds (but no longer than 5.5 seconds) and have the red lights last for a full second before the other direction turns green, you will see a decrease in accidents. The lengthened yellow light can account for a 50% decrease alone. [1] Numerous studies have shown that red light cameras do not always result in lower traffic accidents at intersections: they can also result in a higher number of accidents, especially rear end collisions.

See the statistical analyses of red light cameras (RLC) in Chicago by UIC Professor Rajiv Shah in 2010, where the total number of accidents at RLC intersections increased after they were installed. [2][3][4][5][6]

See the 2004 study of 17,271 crashes by North Carolina A&T State University showed that RLC increased the number of crashes by 40%. [7]

See the 2005 Virginia DOT study of the long-term effects of camera enforcement throughout Virginia and found that the overall number of crashes at intersections with RLC increased. [8]

See the Federal Highway Administration's 2005 study suggesting that although RLC reduce right-angle crashes, they can increase the number of rear-end collisions, leading to the total number of collisions remaining unchanged. [9]

See the Los Angeles Controller's letter to the L.A. city council affirming that the RLC there did not increase public safety. [10]

In 2010, the state of Arizona did not renew their Redflex contract for 76 photo enforcement cameras. [11]

In addition, how will the cameras tell who is driving a car and, therefore, at fault in running a red light? Are they going to assume one of the registered owners are driving it? What will the process be for disputing a machine-generated traffic ticket, whereby you cannot face your accuser in court? Will the fines have to be much higher than they are now to cover the high cost of installing the RLC and to hire a company to run them and generate the tickets?

I think Council President Rice is misinformed: probably by a Redflex salesman who promises the city will pull in more revenue due to more tickets. For a recent list of cities and municipalities that have removed RLC (by Redflex and others) recently, see

Photo by Horia Varlan
Instead of wasting money on this private camera system, I think Vestavia should:

1) Use larger traffic signal heads at intersections
2) Place traffic signal heads in the most conspicuous places
3) Use the most optimal yellow light length of time (iirc, up to 5.5 seconds)
4) Add (or lengthen) a "clearance" phase, during which all directions of traffic have a red light before switching to the next green light.
5) Educate people not to drive while drowsy, intoxicated, or distracted (cell phone or other hand held devices).
6) Re-time lights so that drivers encounter fewer red ones.

I don't think Ms. Rice has done enough research in this area. I hope the entire city council with give it more thought than she apparently has.


Unfortunately for the taxpayer citizens of Vestavia Hills, the city council voted 4-1 to authorize the mayor to contract with Redflex to "study" whether Vestavia Hills needed to purchase their product. Not only will the city waste money for a private business to "determine" that the city will need to purchase their products, but the city will waste money on a product(s) that is designed to generate revenue instead of lowering the number of intersection collisions. 

For more information on why anyone living/working in/near Vestavia needs to voice opposition to "idea" to Mayor Zaragoza and the city council, peruse

Friday, November 04, 2011

Highway 280 Corridor Transit Study Open House Nov. 9, 2011

[update, Nov. 7: the RPCGB has a little more info on the open house. An agenda has been posted, as well.]

U.S. 280 Corridor Transit Study Open House, Wed., Nov. 9
When logging into the CommuteSmart website to log my carpool commutes, there was a notice for an Open House to discuss the possible alternatives for transit service along U.S. 280. The open house will take place Wed., Nov. 9, 2011, from 3-7pm, at the Marriott Hotel, 3590 Grandview ParkwayBirmingham, AL.

Although I am a resident of Hoover, AL, I avoid Highway 280 as much as humanly possible. The congestion is legendary. You'll find the traffic bad even outside the typical rush hour times. However, I realize there are many people who use the highway out of necessity. I'm very interested to see if we (Alabama) can solve this problem the right way, the first time.

The problem
"280" by Wally Argus
Highway 280 is Alabama's 2nd busiest roadway. In 2004, the Regional Planning Commission of Greater Birmingham (RPCGB) asked UAB to study several proposed solutions to the 280 congestion problem. The computer analysis was performed in 2005 by the University Transportation Center for Alabama in conjunction with the Birmingham MPO and the ALDOT. Of all the solutions analyzed, urban interchanges helped the most. However, only seven minutes would be shaved due to the grinding halt at the narrow Hwy 280 to Red Mountain Expressway transition. That problem is a difficult one to solve. You can't widen the overpass through Red Mountain, and you would eventually run into congestion problems as more traffic hits each exit ramp and eventually runs into I-20/59. 

The toll bridge
Elevated toll bridge as proposed by Figg
In September 2005, then-governor Riley invited the three co-chairs of Progress 280 Task Force to a closed meeting in his office[1]. There, Linda Figg (of Figg Engineers, Inc.) presented a concept of (guess what?) an elevated roadway. According to FIGG's website, they "specialize exclusively in bridges"[2]. I don't know how Figg obtained an audience with Riley, but that wasn't even the first elevated road idea. A study was conducted in 1997 by HNTB where Blaise Carriere proposed a 10-mile split elevated pair of 2-lane roadways. It was one of three options that would provide adequate capacity. 

Elevated toll bridge as proposed by Figg
Progress 280 was part of the Regional Growth Alliance, a now defunct group which was comprised of Region 2020, Inc. (a citizen-driven, non-profit corporation that attempts to guide regional visioning), the Regional Planning Commission of Greater Birmingham (a publicly sponsored regional council to "promote regional excellence and community development"), and the Birmingham Regional Chamber of Commerce (a privately sponsored group that seeks to create a unified voice for area businesses in promoting development - in 2009 it merged with Region 2020 Inc. & the Metropolitan Development Board and was renamed the Birmingham Business Alliance).

Elevated toll bridge as proposed by Figg
In June 2006, at Riley's request, Progress 280 hired Figg's firm to complete a design study for an elevated tollway along 280's median.[3] Progress 280 liked the plan and conducted meetings with ALDOT to present the new plan to the public.[4] Although there were well reasoned objections to both an elevated road as well as to a tollway, the only compromise made by ALDOT was to change the plans so that the elevated tollway would only be on the portion east/south of I-459. Ever since the Figg proposal, an elevated tollway (in some form) has always been the number one option on ALDOT's table, until they finally halted work on it on March 11, 2011 due to opposition by citizens and businesses and rejection from city governments.

A better alternative

Interchange in ReThink280 plan
A number of citizens, businesses, and cities have united behind a ReThink280 plan[5], developed by Walter Kulash, that includes toll-free express lanes, local lanes, and ground-level solutions for local access. 

I think the ReThink280 proposal offers a few benefits over the elevated toll bridge plan:
  1. Cost reduction in both upfront construction and long term maintenance.
  2. 4 end-to-end express lanes, without traffic lights, turning movements or tolls from downtown to Eagle Point.
  3. 2 (or more) local lanes added, controlled by traffic signals and connecting to all existing cross streets.
  4. Ground-level grade separations (compact local interchanges and high-capacity split diamond interchanges, with the express lanes travelling under the interchanges).
  5. Use of existing properties.
  6. No worries of sink holes collapsing the bridge.
Sinkhole in Tampa [credit: Skip O'Rourke]
What's missing?
There are two problems not addressed by either the ALDOT plan or the ReThink280 plan:
  1. The connection from 280 to downtown Birmingham via the Red Mountain Expressway is a current bottleneck. If even more traffic were enabled along 280, that bottleneck will grind to a halt. What is the answer? A wider (ironically, elevated) highway (280/31/Red Mountain Express/Elton B. Stephens Expressway) from Red Mountain to I-20/59 (even though there's a proposal to replace the elevated interstate through downtown with one on the ground)? Better interchanges at the exit ramps? 
  2. Birmingham needs mass public transit in some form, whether it be bus, light rail, etc., for future growth and public movement. 
The U.S. 280 Corridor Transit Study was scheduled to be completed in October 2011 and will analyze 1) the enhancement of local bus service 2) premium bus service with queue jump lanes 3) premium bus service with 2 managed lanes in each direction & 4) bus rapid transit.

This open house is for public discussion of the study that has been completed.

Open House
If you live and/or work near the metro Birmingham area, or you just want to learn about the transit alternatives and/or give feedback, I recommend going to the meeting on Wednesday.

When searching for more information on the open house, I couldn't find anything at the transit study's website, any of the city websites, the RPCGB, BBA, or CommuteSmart websites. 

[Update, 11/7] The agenda states that a presentation will be given 15 minutes past the hour (i.e. 3:15, 4:15, 5:15, & 6:15) with time for questions & comments by attendees after each presentation. This was designed to be as flexible as possible to allow people to go and learn about the project and provide feedback.

Here is the notice once logged into CommuteSmart:


US 280 Corridor Transit Study

The Regional Planning Commission of Greater Birmingham invites you to an Open House to discuss the possible alternatives for transit service along U.S. 280 from I-20/I-59 in Downtown Birmingham to the Shelby/Talladega County Line. The Open House will allow people to come and learn about the progress of the transit study, give their comments, and participate in opinion surveys about transit alternatives and the potential funding sources for constructing and operating the service. Information displays, opinion surveys, and opportunities for public comment will be featured.

Wed. November 9, 2011 
3 pm to 7 pm
Marriott Hotel
3590 Grandview Parkway
Birmingham, Alabama

[1] Progress 280 whitepaper (2006-11-10 version) Progress 280 whitepaper (2006-11-17)
[3] (page 4-87)
[5] (as presented to the Hoover City Council in 2010)

Wednesday, September 28, 2011

UAB's server is going away

UAB recently announced the phasing out of their service. After October 1, 2011, the network will no longer be accessible from outside the UAB network and will be permanently shut down on June 1, 2012.

I've moved all of the content from to, including the following pages that provide information of general interest to those outside of the UAB community:

Birmingham's live traffic status and I-65 cameras
Firefox extensions (currently out of date)
Chrome text-shadow and optimizeLegibility bug

The live traffic & camera page is fed by the ALDOT, which is experiencing technical difficulties with their camera feeds in the Birmingham area after vandals cut a fiber optic cable (probably expecting to find copper) in downtown Birmingham. They're working on getting the fiber line repaired. 

Friday, September 16, 2011

Misclassification of Marihuana

I ran across an old English paper I wrote many years ago about the misclassification of marihuana (marijuana). It's an example of my usual tactic back then: a hurried, last-minute style of throwing something together.

Feel free to comment about the paper. I'm certain there are mistakes and out of date information in it. A lot can happen in 10 years.

On google docs:


Misclassification of Marihuana