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David Levinson
Works at University of Minnesota
Attended University of California, Berkeley
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David Levinson

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Main Street - Mahtowa, Minnesota |streets.mn

Mahtowa, Minnesota (near Barnum, in Carlton County) (map) is probably the smallest town profiled in this series. My visit was an accidental stop from up north to down south. Mahtowa is notable for TJ’s Country Corner, which is a thriving corner store and…
Mahtowa, Minnesota (near Barnum, in Carlton County) (map) is probably the smallest town profiled in this series. My visit was an accidental stop from up north to down south. Mahtowa is notable for ...
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Elements of Access: Jam Today, Jam Tomorrow

Density of traffic (k) is the measure of the vehicles per length of roadway. The letter k is used because it comes from the German word koncentration. When you are the only car on the road, the density of traffic is low. When there are lots of cars on the…
Density of traffic (k) is the measure of the vehicles per length of roadway. The letter k is used because it comes from the German word koncentration. When you are the only car on the road, the den...
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Frontiers

There is no larger North American metro area colder than Minneapolis- St. Paul that is larger than Minneapolis- St. Paul. We are on the size-cold frontier. But the same might be said for Edmonton, Alberta and Barrow, Alaska, as well as Mexico City. On the…
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When forecasting the future of travel demand, we have two possible outcomes, compared to the present. People may either: Travel more, or Travel less (There is an infinitesimally small possibility they travel exactly the same amount, so we will ignore…
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Have you ever flown in a commercial airplane and noticed that first class seats are wider than peasant class, and there are fewer of them in a row? Of course you have. Have you noticed they are always in the front of the plane? This too is obvious, even…
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If you can automate that, tell me how.  I don't want to live in the Google+ walled garden. This is what I can do with WordPress/G+ automation.
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Recently published Levinson, D., Giacomin, D., and Badsey-Ellis, A. (2014) Accessibility and the choice of network investments in the London Underground. Journal of Transport and Land Use (in press Volume 9 Issue 2). In 1863, the Metropolitan Railway of…
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Have him in circles
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David Levinson

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Deadly hours for bicyclists on area roadways: 6, 10 p.m.

Nicole Knight Shine in the OC Register writes: “Deadly hours for bicyclists on area roadways: 6, 10 p.m.“ … Bicycling deaths are generally highest in the evening, between 6 p.m. and 7 p.m. and 10 and 11 p.m., according to CHP data. Six deaths occurred in…
Nicole Knight Shine in the OC Register writes: "Deadly hours for bicyclists on area roadways: 6, 10 p.m." ... Bicycling deaths are generally highest in the evening, between 6 p.m. and 7 p.m. and 10...
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The road as an Ecosystem

Today in the Tech World, there is discussion of “platforms” and “ecosystems”. When we hear talk about Apple vs. Google, it is as much about the Apple ecosystem, particularly that around iOS, the operating system for the iPhone, vs. Android OS. The…
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What is the capacity of I-94

I recently wrote about the Capacity of the Green Line, demonstrating a huge amount of underutilization under both reasonable and unreasonable assumptions. I thought I should do the same for I-94 in Minneapolis and St. Paul. Of course a freeway and an LRT…
I recently wrote about the Capacity of the Green Line, demonstrating a huge amount of underutilization under both reasonable and unreasonable assumptions. I thought I should do the same for I-94 in...
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Dis-pirit-ed - A review of Sprit Airlines

dis·pir·it·ed  (dĭ-spĭr′ĭ-tĭd) adj. — Affected or marked by low spirits; dejected. I recently flew Spirit to save money for my project and the University of Minnesota, and as an experiment with an airline I had not previously flown. The most important…
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Spirit is not actually an airline-- it appears to be some kind of credit card scam using airplanes. I had a ticket and never even got in the plane, as my experience was as you describe:

First it was delayed from 3:07 to 4:49, then to 6:44, then to 7:24 then to 7:32 then to 7:55 then to 7:57.
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Today I feel Comcastic, I cancelled my Comcast service, a few days after CenturyLink Fiber Optic was installed in my house at half the monthly rate for 40 Mbps (vs. Comcast Boost which is about 50 Mbps – a difference usually without a distinction, since…
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HOT Lanes are on fire

The graph below shows the growth of High Occupancy/Toll lanes in the United States. From a slow start in the 1990s, growth has picked up in the past decade significantly, with a number of projects recently opened and many more underway. The graph shows…
The graph below shows the growth of High Occupancy/Toll lanes in the United States. From a slow start in the 1990s, growth has picked up in the past decade significantly, with a number of projects ...
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People
Have him in circles
172 people
Samy Boulos's profile photo
Jay Decker's profile photo
Alan Erera's profile photo
Aref Motamedi Lamouki's profile photo
Ning Zhang's profile photo
Paul Pilarski's profile photo
Shantanu Das's profile photo
Michael Wilson's profile photo
Ryan Allen's profile photo
Education
  • University of California, Berkeley
    Civil Engineering (Ph.D.), 1994 - 1998
  • University of Maryland
    Civil Engineering (M.S.), 1990 - 1992
  • Georgia Institute of Technology
    Civil Engineering (B), 1984 - 1988
Work
Occupation
Professor
Employment
  • University of Minnesota
    Professor, 1999 - present
  • University of California, Berkeley
    Researcher, 1994 - 1999
  • Maryland National Capital Parks and Planning Commission Montgomery County Planning Department (MNCPPC/MCPD)
    Transportation Planner, 1989 - 1994
  • Georgia Institute of Technology
    RA, 1988 - 1989
  • Hayes Microcomputer Products
    coop, 1985 - 1987
  • Columbia Flier
    paperboy, 1979 - 1981
Basic Information
Gender
Male
Apps with Google+ Sign-in
  • WordPress
David Levinson's +1's are the things they like, agree with, or want to recommend.
Grids are for squares: Three reasons to consider alternatives to rectili...
blog.lib.umn.edu

Just as we have cut the earth into a grid of latitude and longitude (and knowing that each "block" of 1 degree latitude by 1 degree longitud

The Journal of Transport and Land Use enters year six - The Transportati...
blog.lib.umn.edu

In the past year, the JTLU website has had almost 17000 visits. According to Google Scholar, we have an h-index of 16, 16 articles cited 16

Journal of Transport and Land Use 6(1) - The Transportationist.org
blog.lib.umn.edu

a weblog by David Levinson and the Nexus Research Group on Networks, Economics, and Urban Systems. [@trnsprttnst]. Journal of Transport and

Efficiency Comparison of Pathfinding Algorithms
urbandemographics.blogspot.com

A very cool interactive comparison of efficiency in pathfinding algorithms (via @hmason). A nice thing to play with during boaring meetings.

Club Transit - The Transportationist.org
blog.lib.umn.edu

Users should be financially incentivized to get season or annual passes (paid monthly with bank debits) and become “members” of the transit

NLX redux - The Transportationist.org
blog.lib.umn.edu

I get into a Letter to the Editors battle over in Pine City. I am responding to this about everyone's favorite intercity rail project, the N

Access Across America - The Transportationist.org
blog.lib.umn.edu

Executive Summary. Accessibility is the ease of reaching valued destinations. It can be measured across different times of day (accessibilit

xkcd: Suckville
xkcd.com

Dinosaur Comics, A Softer World, Perry Bible Fellowship, Copper, Questionable Content, Achewood, Wondermark, Indexed, Buttercup Festival. Wa

Annals of excess cost - The Transportationist.org
blog.lib.umn.edu

So we have the capital cost of a commuter rail station at $100000 per passenger. Note this is more than a car or even a simple house. The pa

Black Holes: A brief treatise on the nature of journal publications and ...
blog.lib.umn.edu

Academia should be faster than it is. This especially applies to the transportation and planning journals with which I am familiar. It often

It's Alive - The Transportationist.org
blog.lib.umn.edu

a weblog by David Levinson and the Nexus Research Group on Networks, Economics, and Urban Systems. [@trnsprttnst]. It's Alive. By David Levi

FOSS4G: FOSS Experiences in Transportation and Land Use Research - The T...
blog.lib.umn.edu

FOSS Experiences in Transportation and Land Use Research. Andrew Owen, University of Minnesota Nexus Research Group  The Nexus Research Gro

OpenScheduleTracker - The Transportationist.org
blog.lib.umn.edu

When a new bus route is added or a new rail station opens, the public discussion tends to focus on effects near the new facility: people wan

$40bn “fix it first” plan headlines Obama’s infrastructure push - The Tr...
blog.lib.umn.edu

In his State of the Union address last month, US President Barack Obama proposed investing $50bn, starting right away, on the country's tran

To Game or Not to Game: Teaching Transportation with Board Games webinar...
blog.lib.umn.edu

AHB45 Committee on Traffic Flow Theory and Characteristics will host a special webinar on March 19, 11:00 AM EDT on "To Game or Not to Game:

How shoveling and plowing snow now extends the duration of icy sidewalks...
blog.lib.umn.edu

Minnesota is getting still more ice/sleet/freezing rain/snow today. We will see piles of snow for a long time. Why will we see piles of snow

Suppose we replaced the federal income tax with inflation. - The Transpo...
blog.lib.umn.edu

I just filled out my taxes this year, and it seems an awful waste of time. And TurboTax (and the tax code for which it stands) is increasing

Selfishness and Altruism in the Distribution of Travel Time and Income. ...
blog.lib.umn.edu

Recently published: Tilahun, Nebiyou, and David Levinson (2013) Selfishness and Altruism in the Distribution of Travel Time and Income. [pre

Demand Side Solutions to Ice-Related Falls - The Transportationist.org
blog.lib.umn.edu

I talked before about things we can do to reduce the iciness of sidewalks. That is a supply side solution. We need to think about demand sid