Are Young Americans Driving Less?

Patrick Sullivan | January 29, 2014

You’ve probably heard that young Americans are driving cars less and less. For those who are skeptical about this trend, here's a fantastic new infographic with statistics to back it up. Source:   by forevermelody. Explore more visuals like this one on the web's largest information design community - Visually.
The “Google Bus” Debate

Patrick Sullivan | January 24, 2014

By now, most people who have any interest in transportation policy are probably familiar with the debate in San Francisco over private commuter shuttles, or “Google Buses” as they are collectively known. Dozens of tech companies fund private employee shuttles that make over 4,000 stops per day at locations across the Bay Area. Google alone has over 100 buses that shuttle over 4,500 employees to Google’s Mountain View headquarters. The backlash these private shuttles are facing is in part related to the fact that they are often guilty of clogging the SFMTA bus stops they use to pick up and…
TDM, Explained

Patrick Sullivan | January 21, 2014

What is transportation demand management, or TDM? Well, it’s what I do every day. TDM is the practice of developing programs and policies aimed at providing commuters with travel options other than single-occupancy vehicles (SOVs). From carpooling to cycling to commuter shuttle buses to ITS, TDM programs are designed to reduce traffic and congestion, particularly during peak commuting hours. The definition of TDM can vary a bit among different practitioners within the transportation world. Defined simply, TDM programs exist to reduce traffic and air pollution while making daily commutes more pleasurable (hopefully) for commuters. TDM programs are typically developed and…
Welcome to the On Transportation Blog

Patrick Sullivan | January 13, 2014

So I was starting to feel like the only kid in town without a blog. Even though some are arguing that the traditional blog is a dying medium, I still felt like there was an opportunity to share my thoughts on my particular area of expertise. That area of expertise is transportation demand management, or TDM. (Not to be confused with the other “TDMs” that we are all very familiar with, time-division multiplexing and transnational dispute management.) What is transportation demand management? Well, I’ll explain that in my next blog post. I’ll use this space to write about TDM and…
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