Who’s Responsible?

There is a claim floating around that some study has concluded that motorists are responsible for some 90% of car-bike collisions.

This would be a lot higher than is generally appreciated. I’ve grappled with this a little bit before in Understanding Collision Summaries, where I pointed out an inexplicably high proportion of  “other” violations assigned to bicyclists.

So far, I’ve found a page at projectfreeride.org with a table that is said to be source from Tomlinson, David. Conflicts Between Cyclists and Motorists in Toronto, Canada. Link to a .pdf on the Velomondial.net.

The same claim can be found in a newslettery article dated Aug 19, 2009 on a University of Toronto website entitled Smart Cycling. the information was supplied by a physcian, Dr. Chris Cavacuti, who is also involved with projectfreeride. And a correction with that article that was posted Aug 26:

In the interview, Dr. Cavacuiti is quoted as saying “The [Toronto Collision] study concluded that cyclists are the cause of less than 10 per cent of bike-car accidents”. Dr. Cavacuiti has asked us to make readers aware that the Toronto Collision study was actually designed to look at the cause of bicycle/motorist collisions but not culpability.

It is actually several studies conducted by the Charles Komanoff and member of the Right of Way organization in New York that concluded that concluded that cyclists were strictly culpable for less than 10 per cent of bike-car accidents.

Dr. Cavacuiti would like to apologize for any confusion this error may have caused.

On the projectfreeride page,  in a statement summarizing Tomlinson’s findings, the page at projectfreeride says “In fact, cyclists are the cause of less than 10% of bike-car accidents in this study”. Is that really what Tomlinson found? Or should the correction mentioned above be also applied to the projectfreeride page too?

This claim got picked up by the Freakonomics blog, garnering wide exposure.

Skepticism at the commuteorlando blog. Links the 90% claim back to Komanoff’s group Killed by Automobile paper. More links here on cycledog.

(more to come…)

See my own figures for manner-and-fault-in-bicyclist-traffic-fatalities-arizona-2009 which, according to the police reports/investigation, found motorists most-at-fault in about 50% of fatal traffic collisions between a MV and bicyclist in 2009.

Another hit-and-run; this time Mesa

A cyclist was seriously injured by a hit-and-run driver in Mesa in the early-evening timeframe. Monday Aug 24, 2009.  Police arrested Benito Gil-Mendoza, 31,  on suspicion of aggravated assault and hit-and-run.

The azcentral story says the collision was 6:30p. Sunset that day in Phoenix is 7:03p. No mention of lights was made in either of the news stories.

How will this one play out? After all, three hours is a long time. The suspect will likely deny he was drunk at the time.

Continue reading “Another hit-and-run; this time Mesa”

Queen Creek hit-and-run; driver arrested

Another bicyclist fatality, the fourth fatal Phoenix metro area hit-and-run in just over two months.

See Phoenix hit-and-runs disturbingly similar for a rundown on the other three.

According to MCSO, on 8/15/2009 ~2am three cyclists were EB on Ocotillo Rd ne

ar 228th St, the motorist was WB in the EB lane — i.e. head on. The motorist fled the scene and MCSO later arrested Gary Foshe, 53. The Maricopa County Sheriff’s Office (MCSO) provides police services to the town of Queen Creek. The name of the suspect is probably actually Gary Lynn Foshee — there is a 53 year old by that name with a civil traffic case in justice court June

of this year (is that in addition to the DUI in Scottsdale 2006, mentioned in the EV Trib article below?).

There are some pictures of a roadside memorial at queencreekevolves. The victim’s name was Russell Jenkins. Pics of the ghostbike memorial here, and here. Continue reading “Queen Creek hit-and-run; driver arrested”

MAG Stats

There was a nice little piece in the local West Valley paper, Surprise a safe zone for bicycle riders.

They make some rather outlandish claims, though.

According to figures recently released by Maricopa County Association of Governments, Surprise has one of the lowest rates of injuries and fatalities in the county.

Surprise has an average rating of 5.08 per 100,000 of its population for bicyclist injuries and fatalities and 6.31 for pedestrian injuries and fatalities from 2003 through 2007, the latest statistics…

This contrasts with other neighboring cities such as Peoria — with ratings of 16.43 for bicyclists and 11.71 pedestrians, and Glendale — with 26.68 for bicyclists and 31.27 for pedestrians.

Tempe ranks as the most dangerous city for bicyclists with a rating of 93.57 injuries and fatalities per 100,000 and 54.5 for pedestrian injuries and fatalities.

Is bicycling really almost twenty times more dangerous in Tempe relative to Surprise? One imagines it has more to do with the amount of cycling relative to population. And other distortions, e.g. maybe ASU students aren’t counted as Tempe residents.

Here is MAG’s Transpo Committee page, to see the data referred to in the story, open page Crash Trends in the MAG Region 2001-2007 and then click on “Injuries and fatalities per 100K population”, and a table with per-city data pops into the same page below the existing stuff (thanks to Sarath for pointing that out).

Phoenix Hit-and-runs disturbingly similar

There has been a third fatal hit-and-run in Phoenix, the third within two months — one in June, one in July and one (so far) in August.

Just after midnight this past Saturday,  52 year old cyclist Charles Waldrop was killed by a hit and run driver who witnesses say was driving at a high rate of speed and swerving. Police say an anonymous tip lead to the apprehension and arrest of  23 y.o. Timothy Kissida after he traded (via the “Cash for Clunkers” program) a light blue 1992 BMW 325i w/damage consistent with hit-and-run.  He was booked into the Maricopa County jail and charged with leaving the scene of a fatal collision and tampering with evidence. (KPHO, abc15, azcentral) (CAzBike blog). According to case minutes from 04/08/2010 “The parties anticipate that this matter will resolve prior to Trial.”. Kissida was ultimately sentenced to 10.5 years in prison.

This is disturbingly similar to another incident just 4 weeks ago; also in Phoenix, also in the early morning hours of Saturday, also hit-and-run. In that case, though, police apprehended and was arrested someone soon after the collision. See South Phoenix Hit-and-run for details on that incident.

There was a third nighttime hit-and-run fatality in Phoenix back in June, see Driver confesses to hit-and-run killing

As a note on media coverage; something I normally have complaints about, I have to give credit where it is due — The azcentral.com (and abc15.com carried the same quotes), sourced to police spokesman Sgt. Tommy Thompson was unambiguous: “The cyclist, 52, was riding home from work and was in full compliance with the bicycle laws. He was riding with a bike light and a rear flashing light in the bike lane.” In the June fatality, police said “Police say that Thompson was riding his bike legally”.

Recap of the Criminal Cases

Index to the three, with outcomes, all drivers were caught and were subsequently convicted of various crimes, though the outcome varied quite a bit:

  • June incident: driver worked a plea for simple hit-and-run; very brief sentence. Presumably because there was apparently no impairment.
  • July incident: driver went to a full trial — found guilty of neg hom among other crimes. Was sentenced to 6 year PLUS a consecutive 3.5 years for the hit-and-run (VERY unusual) — this seems to be his “punishment” for going to trial vs. working a plea deal.
  • August incident: driver plead to manslaughter and got 10.5 years. due to plea deal, the hit-and-run he also plead to netted no incarceration.

 

 

…

2009 AZ Cyclist Fatality Grid

36th and Equestrian traffic circles

Ahwatukee is getting two traffic circles courtesy of the City of Phoenix’s collector street mitigation project. One at Equestrian Trail and Appaloosa Drive, and the other at 36th and Coconino Streets. At the same time, the bike lanes were re-configured on 36th Street. Equestrian Trail also has a bike lane; that has not been altered other than to allow for the circle. Continue reading “36th and Equestrian traffic circles”

Drunken driver Sentenced in Cop’s Death

Salvador Vivas-Diaz was sentenced to the maximum of 16 years in prison after being found guilty of manslaughter after driving drunk and hitting Phoenix PD Officer Shane Figueroa head-on. The officer was responding to a call at the time.

Traffic collisions, not, say, guns, are the leading cause of line-of-duty deaths of police officers. See: More Police Killed by Traffic than Guns.

“Alcohol-Related” vs. “Alcohol-Impaired”

2007alcoholrelatedfromwsjIn last week’s Numbers Guy WSJ column, Carl Bialik examines a dust-up between MADD and the (beverage industry-backed) Century Council. They published a bar-chart of alcohol-related fatalities broken down by BAC levels.

Note that the term alcohol-related means simply that any of the drivers involved had a BAC of 0.01 or greater.

What intests me, however, is how the chart looks if we include all fatalities and how the same chart would look. Continue reading ““Alcohol-Related” vs. “Alcohol-Impaired””

Driver confesses to hit-and-run killing

Marcello  Rojas, 43, the driver of a 2006 BMW was stopped for speeding June 9 ~ 10pm — this is unrelated to the crash. At that time he told police “he hit a guy on a bicycle”. According to police the victim, Billy Ray  Thompson, was riding westbound on Broadway “perfectly legally” which i took to mean, but the story doesn’t elaborate, that he was properly lighted/reflectored. No dui is suspected.

News reports: AZ Rep, ABC15 #1, ABC15 #2

This is one of a chain of similar fatal hit-and-runs in Phoenix that occurred in summer of 2009.

The Case

Superior Court Docket, case number CR2009-138233. According to the minute entry on 2/9/2010 Rojas plead guilty to hit-and-run w/death and was sentenced to 7 weeks in county jail with credit for 52 days already served (which i take to mean, he’s done with jail already); and a year probation.

According to the minute entry that went over the plea deal; apparently by pleading he got 28-661 knocked down to a class 3 felony (leaving the scene of a fatality that was not his fault. Versus a class 2 if it was his fault). Then, for whatever reason, for the purposes of sentencing this is considered a “non dangerous” offense. Which I guess is why it comes with such a piddly sentence.

2009 AZ Cyclist Fatality Grid

Where’s your license plate?

Wouldn't this be rockin' on your bike?
Wouldn’t this be rockin’ on your bike?

Unfortunately, the Arizona Revised Statutes (ARS) specifically grants the power to local authorities to further regulate bicycles in §28-627 ,  including allowing them to require “…the registration and licensing of bicycles”.

So does your city require registration? What about the city you’re riding through? Who knows? You would have to comb through every city’s ordinances, and even then you might find that things aren’t as they seem 🙂 Continue reading “Where’s your license plate?”

When Traffic lights Don’t Turn

“When Traffic lights Don’t Turn.”  I get calls and inquiries about this subject on occasion:  “What should I do?”  We address this in our Arizona Bicycling Streets Smarts booklet by John Allen (refer to http://www.azbikeped.org/chapter9a.htm — “If your bicycle doesn’t trip the detector, you have to wait for a car to do it, or else you have to go through the red light. Going through the red isn’t against the law, because the light is inoperative. If you ever have a crash or get a traffic ticket because a traffic light won’t turn green, it’s the fault of whoever installed the detector”).  It is my understanding that this is allowed under ARS 28-645. C.:  “The driver of a vehicle approaching an intersection that has an official traffic control signal that is inoperative shall bring the vehicle to a complete stop before entering the intersection and may proceed with caution only when it is safe to do so”.  Allen goes into more detail on traffic signal actuators here — “bicycle-insensitive traffic signal actuators are defective and illegal.”  LAB has some general information on the subject here.

Michael N. Sanders
ADOT Bicycle/Pedestrian Coordinator
Bicycle and Pedestrian Program

And here is what Bob Mionske says on the topic:

Once you have located the cut lines in the road and positioned your bicycle above the cut lines, what if the light has still not triggered? . . . It turns out that in every state, this is one instance where you can legally run a red light. . . . to be sure that the signal is defective (and to be able to demonstrate in court that you had sufficient reason to be sure), you should sit through the equivalent of one complete light-cycle –– about three minutes –– without the light being triggered.  If you still don’t get the green light, the light is defective, and you can then proceed through the intersection, yielding the right-of-way to any approaching vehicles (Bicycling & the Law: Your Rights as a Cyclist, p. 42).

Is your ebike a play vehicle?

[UPDATE: Arizona STATE law was updated to explicitly define ebikes in 2018.
Tempe has updated their ordinances a couple of years ago (2019?) to explicitly include ebikes; and Phoenix did so in March 2022. So the article below, written in 2009 is here more for historical purposes.
HOWEVER many many other cities and towns have this “trap” in their local ordinances]

Original title: Is your motorized bike a play vehicle?

First, see Moped and Motorized Bicycles in Arizona for general background on Motorized Bicycles. Sort of unfortunately, every individual city or jurisdiction can have their own codes further regulating things. Continue reading “Is your ebike a play vehicle?”

Crashes are the Leading Cause of Death…

I found this image lurking on the NHTSA website. MVCs (Motor Vehicle Collisions) are always the leading cause, though the exact ages vary from year to year, e.g. from Motor Vehicle Traffic Crashes as a Leading Cause of Death in the United States, 2000 “motor vehicle traffic crashes are the leading cause of death for every age 2 through 33”. Note that this ranking is all inclusive; thus it includes things like suicide, homicide, and so forth.

Just like everything else in life, there are some nuances that are worth understanding. The simplest distinction is between internal (think disease) and external (think any sort of accidental death; car crash, drowning, falling…). These distinctions are detailed in the technical report, e.g. Motor Vehicle Traffic Crashes as a Leading Cause of Death in the U. S., 1997 (emphasis added):

“As a major external cause, traffic crashes are the prime cause of accidental death in the United States, and this has been true for many years. Thus, for persons of all ages, traffic crashes alone in 1997 caused almost one-half of all accidental deaths that occurred….  “

For example, from Exhibit 5 here are the top 5 causes of “accidental death” for both sexes combined. MVCs DOMINATE the rankings.

  1. Motor Vehicle Traffic Crashes 42,340
  2. Falls  15,477
  3. Poisoning  10,163
  4. Other and Unspecified Causes (including suffocation which was #4) 5,207

…

MVC’s (Motor Vehicle Collisions) are so horrifically high, that they have even snuck into the debate over Universal Health Care in the US. It seems that “unnatural” causes of death (MVC being the prime category) are so high in the US that they have significantly depressed our life expectancy. By adjusting the life expectancy data for all the OECD countries (except Luxembourg), the US catapults from last to first place! This is all according to University of Iowa researchers  Robert L. Ohsfeldt and John E. Schneider.

 

http://idmeglobalalert.com/images/DeathCauses05.jpg

nhtsa 810936 Leading Causes based on 2005 data

 Updated for 2009 data

“Motor vehicle traffic crashes were the leading cause of death for age 4 and every age
11 through 27 (based on latest available 2009 data)”
Source: National Center for Health Statistics (NCHS) Centers for Disease Control (CDC), Mortality Data, 2009… quoted from NHTSA Quick Facts 2012.