Trend-lines continue to support fewer car trips in our cities
Here’s an interesting comparison of the data for the Grand Traverse County population growth (G-D) and a single Michigan Department of Transportation plot point for Average Daily Traffic counts (MDOT) on Division St. This plot point is between 12th and 9th St., or the area under consideration by voters to dispose of parkland to MDOT to provide an alternative design to the current stroad.
There is a positive trend line here with decreasing ADT counts despite population growth and what we know about the increased activity at the Commons and the hospital. Of course, it is only one plot point of a greater network–so, take it for what it is.
Still, it raises several questions. One, why during the last 3 years of public discussion about this section of Division St. are the ADT’s expressed at 27,000 or higher? They haven’t been that high since 2004 and this has real consequences as to options MDOT will consider. Two, consistently the City is told that future design changes need to be built for steady increases in the ADT counts. The trend-line at this one plot point, as well as in other places around the City, and even nationally, is that driving has peaked and declines are to be expected (Freakonomics).
ADT counts have always been controversial but even if we accept them as valuable tools, why build for counts that aren’t coming nor desired? What are the policy and design considerations the community can do to support this downward trend?
I’m no engineer, but I do have questions.
- A car nut does the math, chooses a the walk/tram/bike commute (Truth About Cars)
- If reducing congestion is the primary goal, your city is failing (Dom’s B Plan) But, let’s not go calling that logic a war on cars, unless you mean it. (DBP)
- What makes us human? Community engagement (Better..)
- Faced with restricted space, are advisory bike lanes an option? (Bike Walk..)
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If economic success was about parking spots, malls would not be failing. Yet, parking is likely what your downtown focuses on most.—
MyWHaT/G. Howe (@glhjr) October 15, 2012
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