Showing posts with label TRAFFIC SIGNALS. Show all posts
Showing posts with label TRAFFIC SIGNALS. Show all posts

Monday, September 9, 2019

Burlington Roundabout Cure for Signalized Intersection Highway Deaths

Burlington Intersection Death List...Our Recent History of Fatal and Serious Injuries...Now Modern Roundabouts Cut Fatal/Serious Injury by About 90 Percent 

The National Picture of Highway Safety

About 9,000 fatals--23% of the over 40,000 annual highway deaths--occur at or near intersections.  Half of all senior driver and pedestrian deaths involve intersections.  For every U.S. fatality there are about seven disabling injuries.  In 2003 U.S. pedestrian deaths and disabling injuries, included in the US highway totals, amount to 20,700 and bicyclists numbers were 6,600.  Unfortunately since 2010 US pedestrian deaths are up 45% nationally.  Once 1st in highway safety in 1990, the U.S. has fallen to 18th.  Based on highway miles driven we now have over 23,000 excess deaths compared to the performance of the top four nations—U.K. (co-leader with us in 1990), Norway, Sweden, and Switzerland.   In a recent year highway crashes were the highest cause of death for those aged 4 to 34.  

The Vermont Highway, Gun, Opioid Deaths Data

Current U.S. longevity decline, the only one among advanced nations, coincides with the extremely high rates and numbers of highway, gun and opioid deaths:  over 40,000 highway deaths (2018), 39,800 gun deaths (2017), and 70,000 opioid deaths (2017-2018 average).  Vermont death numbers are 69 highway (2017-2018 average); gun 78 (2016); and opioid 109 (2018).  (Alcohol addiction remains far and above these three causes of death in U.S.)  For highway safety, returning Vermont and the nation to number one would halve Vermont highway fatalities, a reduction of about 35 a year.  Adopting neighbor Massachusetts gun regulation, lowest in nation in gun deaths, would reduce our gun deaths up to two-thirds, about 40 less deaths per year.  Certainly opioid reduction efforts can very likely attain a 50% reduction or 55 deaths a year.  Overall the estimated potential reduction in highway/gun/opioid deaths totals 130 a year.  All three areas require equal, aggressive governmental attention at the local, state and federal levels.  

First and foremost in regard to highway safety the United States and each state—Vermont can take this action now—must undertake a “systematic safety” plan and program, a comprehensive planning and implementation plan which led several advanced nations past the U.S. in highway safety performance and even in many cases continues to widen the gap with the United State.  The local equivalent of “systematic safety” can take the form of a strong “Vision Zero” initiative but to this time Vision Zero initiatives have been at most halfway measures. 

The Burlington Picture of Highway Safety

The Burlington roadway deaths and injuries show a need to address pedestrian and bicycle carnage because these latter two modes not only are more prevalent in urban areas but because there are strong currents to expand these “active transportation modes” for health and environmental reasons.  In addition to safety as the first and overriding concern, consideration of global warming, air quality, and resource constraints are now recognized as a given in transportation investments decision making. 

Burlington clearly is not immune to deaths and injuries at our intersections.  Burlington recently averaged 150 roadway injuries yearly including a pedestrian and car passenger fatality in the 2014-2018 period.  About a third of annual injuries, about 50, comprised those on foot or bicycle in roughly equal proportions.  Most pedestrian injuries occur at intersections.  Two of the three pedestrian fatalities in Burlington dating from 1998 were at a signalized intersection as was the one cyclist fatality.  A survey taken as part of the PlanBTV Walk Bike adopted in 2017 found (2011-2015) found 17 intersections (“the dirty 17”), mostly signalized, averaging one injury a year—again including a pedestrian fatality in the survey period.  Burlington has three of the highest current Vermont Agency of Transportation (VAOT) crash intersections in Vermont—Colchester/Barrett/Riverside US 7 (#1); Main/S. Prospect US 2 (#16); and Pearl/ N. Willard US 7 (#27).  The only reason the Burlington intersection Shelburne/Locust/S. Willard/St. Paul is no longer on the list is because it is set for construction as a roundabout.   

Burlington from 1998 through 2018 recorded seven road fatalities, about one every three years.   All but one of the seven occurred at a signalized intersection: three car occupants (two drivers and a passenger); three pedestrians; and one bicyclist.  With 150 injuries a year in a five year survey period, it fair to conclude that about one fatality occurs here for about every 450 injuries.  Again, six of seven fatalities occurred at one of the City's approximately 75 traffic signal intersections.  Finally, it is the pedestrian and bicyclist who suffers disproportionately when it comes to fatalities versus the car occupant who retains the protections of a motor vehicle—while pedestrian and cyclist injuries in Burlington are one third of all injuries, when it comes to fatalities they are the majority, four of seven.   

The Modern Roundabout Cure

The modern roundabout, the 53 year-old powerful technology composed of stone age materials, cuts about 90 percent of fatalities and serious injuries as well as injury severity  (Insurance Institute for High Safety [2000]).

Below find added information on Burlington fatal crashes at intersections, only some of the recent fatalities statewide and a small fraction of critical injuries at Vermont intersections.  The signalized intersections appear good candidates for roundabouts. Vermont passed the first US state legislation in 2002 calling for a transportation department to aggressively pursue installing roundabouts at dangerous intersections. 

Roundabouts in downtowns and village centers in Vermont are a proven safety treatment.  The five Vermont downtown roundabouts (Manchester Center, Middelbury and Montpelier) in their first 52 years of performance recorded zero bicycle injuries, one pedestrian suffering bumps and bruises and four minor car occupant injuries—one injury (none serious) a decade.
Several jurisdictions—states, Canadian provinces, counties and cities—have adopted “roundabouts first” policies.  NY State Department of Transportation is certainly the most prominent with its “roundabouts first policy” in place since 2005.  

In a 2011 report, AAA called for a White House Conference of all interests and adoption there of a “zero fatality rate” goal on the nation's highways.  That AAA study done by the reputable Cambridge Systematics found highway fatality and injury social costs twice the cost of congestion in all but the smallest metropolitan areas—and higher in all metro areas.  The Federal Highway Administration uses a highway fatality social cost as $6.1 million and an injury $126,000 (2009 dollars).  

Burlington Intersection Death List  1998-2018

Linda Ente, 48, Winooski (Home Avenue/Shelburne Road, signalized).  Pedestrian killed in car crash (1998).  Employed at adjacent supermarket. 

Charles Burch, 72, Burlington (Manhattan Drive/VT 127, signalized).  Bicyclist killed in car crash (2004).

Raymond Herbert, 23, Vergennes (Main Street/Spear Street, signalized).  Driver killed in two vehicle crash (2005).

Kaye Borneman, 43, Burlington (Main Street/St. Paul Street, signalized) Driver killed in two vehicle T-bone crash (2010). 

Bruce Lapointe, 63, Winooski (Colchester Avenue/Barrett Street/Riverside Avenue, signalized).  Pedestrian killed on motor vehicle crash on crosswalk (2012). 

Lul Ali Gure, 29, Burlington (Home Avenue/Shelburne Road, signalized).  Car occupant killed in two car crash (2018). 

Jonathan Jerome, 61, Winooski (North Avenue/Poirier Place, sign control).  Pedestrian killed crossing North Avenue in a car crash (2018).

Tony Redington
Safe Streets Burlington   

TonyRVT99@gmail.com September 9, 2019

Sunday, March 17, 2019

Safety First Before You Build a Parkway, $3.28 Million added Parkway Soil Bill?, and Parkway Climate Change


Safety, City taxpayers and climate change--all related to Champlain Parkway are the subject of three tweets this morning. It goes without saying that lack of any safe and separate walk and bike facilities in the Champlain Parkway is a non-starter when it comes to climate change emissions as travel along the Parkway corridor is only practical by motor vehicle (bus service also problematic as well as GMT terminal access), and even more important signals are a cesspool of climate emissions compared to a roundabout.

Here are the tweets:

Hero pilot Sully Sullenberger Saturday on 737 Max 8 crashes: “quality and safety pay for themselves...always better & cheaper to get it right than repair the damage after..." Re-design Champlain Pkwy. group targets no safe walk/bike facilities, no safe intersections


Tweet March 17
BTV facing $3.28 million taxpayer bill for Parkway contaminated soils—figure City Engineer Baldwin revealed at CCRPC Board last month? He says construction start 2019--Pine Street Coalition safety re-design cuts $43 million cost ~$8 million, likely soils too.
The fight to re-design the Champlain Parkway here in BTV from the start included climate change—absence of separate and safe walk and bike facilities, half mile of unneeded street, 1,000s of gallons gas wasted yearly at intersections. Safety 1st of course.

Saturday, December 12, 2015

Why? Why? Why?


During the past months I have held back from looking at the intersection numbers along the [Burlington, VT Champlain] Parkway because quite frankly they do not reach the levels found on our busier streets and in particular the North Avenue highest trafficked section--VT 127 to Ethan Allen Parkway--which do reach near the limit of the single lane roundabout.  (Compared to any signal or signs at busy intersections, the single lane roundabout drops vehicle occupant, walk, and bicyclist serious and fatal injuries about 90%.)  

The current and 2028 numbers for each street section and each intersection are readily available in the Environmental Impact Statement (EIS) traffic chapter for the Champlain Parkway on the Department of Public Works websit. 

Still looking at the Pine/Maple intersection where anyone familiar with that intersection well knows waiting 5-7 minutes going north on Pine during the afternoon peak is routine.  Good time to get some internet time when on the Montpelier-Burlington Link!

Still, a detailed look at the p.m. peak hours at the Maple/Pine intersection for 2028 with the new signal as planned there dismays.  Why?   Well, the traffic numbers 13 years hence are slightly above those today at Montpelier's downtown roundabout, Keck Circle, where peak hour delay a.m. and p.m. can be counted on a hand with three fingers. 

Yes, a roundabout--checked out by one of the foremost roundabout designers in the world as part of the AARP Workshop in September 2013 as both workable and feasible--would likely delay the average vehicle on a Friday drive time about 5-6 seconds in what is called "stop delay."   This is not a fairy tale, the Parkway consultant, CHA will tell your their Keene, N.H. Main Street roundabout dropped the Winchester Street leg adjacent to Keene State College from six minutes to six seconds during drive times compared to a proposed signal.    

What in the world is wrong with our Department of Public Works that it will not install a roundabout at Pine/Maple next spring at the 10% of the cost of the Pine/Lakeside signal upgrade of $419,000?  Why not?

A traffic signal at Pine/Maple--part of the current Parkway design--will likely delay an average vehicle 20-30 seconds, about ten times the wait time at a roundabout there.  What is far, far worse, the signal will generate more crashes and injuries over and above the four-way stop now in place (the four-way stop, next to the roundabout the safest intersection).   So the signal promises a 20-30 second wait for everyone (pedestrians face no significant delay today) as well as an extra crash and injury or two each year.  Why?

Burlington already has the "dirty 17" intersections (13 signalized) averaging a pedestrian injury each per year and so the City in its wisdom clearly is on a crash course to install another signalized intersection (one of five new ones on the Parkway) sure to add to the City's transportation unsafety.  Why?   

      Tony Redington 
 
(The message above sent to the Commissioners of the Department of Public Works does not mention the tens of thousands of gallons of fuel saved and associated pollutants deduced, scenic quality, etc.)



-- 
Tony Redington

Champlain Parkway:  Stop!  Re-Evaluate! Re-Imagine!