Up Sucker Creek

Up Sucker Creek
Photo Courtesy of the Lake Oswego Library

Thursday, April 24, 2014

Measuring traffic congestion


t seems stories about bicycles are everywhere.  The article I posted yesterday from FiveThirtyEight.com about bike lanes, traffic volumes and congestion sparked a lot of conversation among professionals about how one measures congestion.  A follow-up article, How To Measure Traffic Congestion, gives another perspective on measurement techniques from traffic professionals, and the original authors' response.  

My own thoughts on the bike lane discussion are:
  • If traffic volume does not change significantly after putting in bike lanes, no GHG were reduced.  
  • If congestion worsened after a bike lane was built, GHG emissions may be expected to go up - a little or a lot) due to the increased time autos spend on the road and idling in traffic.  
  • If GHG reduction AND congestion relief are removed from their purpose, we must re-examine why we are building and maintaining bike lane infrastructure and justify each project's costs and benefits with new criteria.
My suggestion to Portland's Transportation Commissioner and Director is to forget building anything new and work on making existing bike and pedestrian routes safer (remove bike paths from high crash zones and high-traffic roads).



OOOOOOOOOOOO

I would like to take this opportunity to introduce a new website I have added to my list of Favorite Blogs - FiveThirtyEight.com.  The contributors are top notch as is their reporting.


2 comments:

  1. With pollution from autos way down over the last 20 years (largely due to Federal regulations) why do we need to drive more people out of cars.
    Here in Portland year round bike riding by masses of people is highly unlikely because of the weather alone.
    Here in Lake Oswego the aging of the population creates another factor against mass bike riding yet this build it and they will come persists among planners.
    Look at the hard data in the TSP measuring traffic flow at intersections (many) at rush hour. Quite simply there are no bikes!
    We have got to stop wasting our precious resource tax money on things that are not used. Every decision whether operating or capital should be measured by how many will benefit from this money.
    Get on it City Council!

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    Replies
    1. The chief obstacles to bicycle ridership are: 1) increase in age 2) inclement weather 3) hills. Lake Oswego has all three in abundance, and at least two can't be changed, and the third is not likely to change any time soon (as in decades).

      I am an advocate of a good recreational pathway system that connects to places people can park, shop, eat and have great views or other points of interest. I like paths (not sidewalks so much - ruins the relaxed feel of our cozy neighborhoods). What I don't like is all the Greenwashing that come with them:' active transportation will lower our carbon footprint, reduce GHG, and get people to live a healthier lifestyle. (Cue the birds chirping and the harp playing.). All I want is for people to be realistic about what bike paths will and won't do, and then choose what fits THEIR needs and pocketbook. It's pretty simple - maybe too simple?

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