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Global Solutions President and CEO Dr. Maya Rockeymore, speaking at a panel after the screening, responded to the stark numbers presented in the film. In Baltimore, residents of the Inner Harbor have a life expectancy of 62 years while residents of North Baltimore have a life expectancy of 82 years. "Context controls choice," she said. People need access to parks, transit, safe walking and bicycle routes, and full-service grocery stores to even have the choice to be healthy.

Low-income communities and communities of color have higher rates of obesity and chronic disease. The physical neighborhood of the Inner Harbor contributes to the health disparity in life expectancy. While designed as a walkable community, the neighborhood suffers from vacant houses, streets in need of maintenance and lack of destinations to meet basic needs such as a grocery store. When the physical environment deteriorates, safety becomes an additional issue in neighborhoods.

In the United States, 66% of adults are overweight or obese and nearly 20% of children are obese. Being overweight or obese increases the risk of chronic diseases such as hypertension, high cholesterol, type 2 diabetes, and asthma in both adults and children.

Pamela Creekmur, the Acting Health Officer and Director of the Prince George's County Health Department, explained that Prince George's obesity and physical inactivity rates are higher than other jurisdictions in the greater Washington region. Though Prince George's faces a bigger challenge, all the region's communities have seen a rise in obesity rates, which range between 18 to 34 percent for adults throughout the region.

Part of the cause of this obesity epidemic is physical inactivity. There has been a 300 percent increase in driving to work since 1960. As the documentary explains, in 1969 almost 50 percent of kids walked or biked to school while today only 13 percent of kids do the same.

The lack of exercise by children extends beyond just commuting to and from school. The documentary shows a mom who takes her children to a parking lot because it is the only open space they have to play. This environment isn't hospitable to the kind of physical activity a good park encourages.

Whether it's questions of commuting or questions of parks, transportation and planning professionals make decisions that affect travel and open spaces every day. These decisions need to be viewed as public health decisions.

The Centers for Disease Control and Prevention (CDC), the federal agency charged with health promotion and disease prevention, agrees. It has recognized that transportation policy, street-scale improvements, and access to places suitable for physical activity matter to our health. Among the CDC's recommendations is to participate in Safe Routes to School initiatives and adopt Complete Streets policies.

The Guide to Community Prevention Services, written by an independent group of public health and prevention professionals appointed by the CDC director, outlines several more environmental and policy approaches to provide opportunities for people to be physically active. These include the connectivity of sidewalks and streets, providing places for physical activity such as trails, and street-scale improvement such as street lighting and traffic calming. Such urban design features have been shown to improve some aspect of physical activity by 35 percent, not to mention the accompanying benefits of reduced crime and stress.

Of course, these improvements do not come overnight. After the screening, an elected official and audience members noted that such changes are not easy. After all, parks do not generate tax dollars.

But that does not mean that our environments must stagnate while our health deteriorates. Local communities can bring about change even when the federal government or state government seems stuck. Port Towns Youth Council President Erick Vargas talked about how his group took matters into their own hands by doing an audit of the streets and reporting the problems.

Prince George's County is taking action through a partnership of towns within the county. The Port Towns Community Health Partnership has a policy development team focused specifically on the built environment and nutrition policy to improve options for active living and healthy eating.

The group, which includes the towns of Bladensburg, Colmar Manor, Cottage City, and Edmonston, included a community health and wellness section in the Port Towns sector plan with the goals of providing safe places to walk and exercise and access to nutritious foods. The group is following through on sector plan recommendations to formalize a wellness opportunity zone as part of the zoning code. This would include changes in the built environment, access to healthier foods, and improved environmental stewardship.

Across the Potomac, the Fairfax County Health Department established the Partnership for a Healthier Fairfax, a group of community members and organizations concerned with public health. The Partnership created an environment and infrastructure strategic issues team as one of five teams who will make recommendations for improving health in Fairfax County. The first focus is a on local policy. The team is doing a scan of policies, including transportation and land use, that could be modified to promote a healthier and safer physical environment.

In the Washington region, better transportation and planning decisions can improve our health by increasing our access to efficient transit and space to run, bike, and play. We also create a healthier context for our environment—and as Dr. Rockeymore said, context controls choice. Throughout the region, local groups are working to give more of their neighbors the choice to live healthier lives.

The conventional wisdom in community development is to preserve current buildings and fight redevelopment of existing low-cost rental units. But that's exactly what we've been doing for the last decade. Instead, the number of affordable units in DC has been cut in half since 2000. The low-cost housing that remains is often poor quality and far from public transit.

While much of the public debate about DC development policies today centers on the height limit, that's far from the only restriction on growth. Locals governments also impose mandated lot sizes, building setbacks, floor area ratios, and parking minimums that restrict the amount of housing and drive up the cost of building new development.

So what's the solution? Yglesias takes the economist's perspective, targeting supply and demand:

[W]e need to acknowledge that there are only two sustainable ways to reduce the price of housing. One is to lower demand by making a given place a worse place to live. Detroit features high crime, low-quality public services, and a bleak job market. The rent in Detroit is not high. [...] The other way is to increase housing supply.

Opponents of smart growth policies contend the suburbs have grown because of America's desire for a white picket fence and a two-car garage. Yglesias says that through policies that discourage additional housing units from being built in urban cores, we've given families little other choice but to turn their backs on urban cores in search of cheap housing. By easing restrictions on urban housing supply, some of those families could move closer to the core, cutting their commute times and reducing their carbon footprints.

Yglesias resists policy prescriptions, instead closing with a call for those on both ends of the political spectrum to let go of failed policies and take a fresh look at possible solutions. "Many on the Left—starting with my inspiration, Jimmy McMillan—are confused about the relationship between housing affordability, regulation, gentrification, and quality of life over the long term," writes Yglesias. "On the Right, the problem is one of myopia and identity-driven resentment." He also wants our public debate "to better distinguish between the price of land (a speculative investment commodity, like stocks or bonds) and the price of houses (a consumption good, like a car or a refrigerator)."

Yglesias has faced some pushback in urban development circles. In a reflection of how fast the online news cycle moves, we already have articles asking if the pro-density movement has gone too far, even though at last check DC's height limit remains alive and well.

At a time of political polarization, is it asking too much for liberals predisposed to distrust corporate developers and conservatives prone to distrust government solutions to come out of their corners? What processes in our systems of government and public debate could be better utilized to facilitate the discussion? Can a happy medium be found between opponents of DC's current development restrictions and the skyscrapers feared by their supporters?

Post your questions in the comments, and we'll try to ask as many as we can during the chat. And join us on Wednesday at noon for what should be a very informative discussion.

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Bottigheimer and former real estate head Steven Goldin advanced many significant projects for transit-oriented development on WMATA property, including at U Street and an agreement with GSA to develop around many suburban Metro stations, especially in Prince George's.

While there have been many frustrating developments from the operations side, the work we've seen from planning has been almost universally terrific. Of course, many top-notch planners remain in the group, so we can expect much good work yet to come.

In a memo, CEO Richard Sarles announced the change. Also, Chief of Staff Shiva Pant is retiring, and current customer service head Barbara Richardson will take over. She will oversee a number of functions at WMATA including planning, while parking and real estate development will be under CFO Carol Kissal. Lyn Bowersox, head of PR, will take over Richardson's job as Assistant General Manager for Customer Service, Communications and Marketing.

Bottigheimer will continue to advise WMATA on the transit plan and real estate issues through the fall as well.

Jeremy Faust, who runs the DC Council's Committee on the Environment, Public Works and Transportation for Councilmember Mary Cheh, is leaving to move to Cincinnati. Jeremy became an expert on transportation policy very quickly once his boss took over the committee, and before that did great work on streamlining the government when running the Committee on Government Operations and the Environment.

Fortunately, Cheh recently also hired Will Handsfield, who as a Capital City Fellow helped roll out Capital Bikeshare, among many other things. Cheh will continue to get very good advice on transportation policy.

Finally, Aaron Overman is leaving DDOT's transit group and will start working for Cambridge Systematics, where he will manage planning projects in the Washington region and around the United States. Overman helped push for better bus service and for a successful streetcar program at DDOT, and sadly losing him will force DDOT to find another person of high caliber to help keep its transit operations moving forward smoothly.

WMATA planned the single tracking between Eastern Market and Cheverly to accommodate a range of repairs and reconstruction in that segment. Half-hour headways may have been necessary to ensure worker safety and maximize efficiency, so that the work could be completed prior to Monday's rush hour. That's all perfectly justifiable.

But there was absolutely no reason for riders along the entire length of the Orange Line to be left with such terrible service. Metro's track schematic clearly shows there are crossover tracks between Federal Center SW and Capitol South stations. Trains coming and going west from Federal Center SW could have used that crossover track to turn around, ensuring regular weekend headways through downtown Washington and in Virginia.

We know trains can turn around using the crossover tracks since they do it every day at Mount Vernon Square and Grosvenor, so why couldn't they have done so last weekend at Federal Center SW? This simple solution would have prevented thousands of Metro customers from being greatly inconvenienced.

It's possible that Metro had repairs under way elsewhere along the Orange Line, but the press release didn't communicate that. In any event, there are crossover tracks every few stations all throughout the system. Trains could have turned around at McPherson Square, Foggy Bottom, or Clarendon, and at least riders west of the turnaround wouldn't have been faced with 30-minute waits.

Sometimes officials forget that keeping the rail system in proper order is a means to an end, not an end in and of itself. If the system isn't serving customers then it's not working. The next time Metro has to perform single tracking, they should use one of the system's many turnarounds to ensure short headways along the rest of the line.

Cross-posted at BeyondDC.

VDOT showed 4 "packages" of changes at 2 public meetings, along with stats for how each would likely affect travel times, traffic volumes, and more.

Package 1, which would make the existing lanes of I-66 into HOT lanes, free for vehicles with 3 or more people and tolled for 1 and 2, brings almost as much benefit as Package 2, which would add a 3rd lane on top of that. But package 1 costs about $350-650 million less.

Allen Muchnick of the Arlington Coalition for Sensible Transportation was one of the stakeholders in Tuesday's meeting, and got to see the draft final report. It lists the following metrics for packages 1 and 2, plus another option called a "sensitivity test," which tried only applying tolls during the peak period where I-66 is HOV-only today.

Here are the key metrics. The "Pkg 1 + ST" column reflects this new option from the sensitivity test.

Metric	Pkg 1	Pkg 1 + ST	Pkg 2
Daily Person Miles Traveled	+40,490 (0.8%)	+318,388 (5.4%)	+267,509 (4.6%)
Person Throughput Measure	+5,632 (1.2%)	+27,669 (6.1%)	+24,098 (5.3%)
Peak Period Congested VMT	+10,726 (2.8%)	+11,230 (2.9%)	-65,164 (-16.9%)
Transit Ridership	+1,423 (1.1%)	+2,568 (1.9%)	+2,124 (1.6%)
Added Capital Cost	$33M	$33M	$345-695M
Added Operating Cost	$23M	$23M	$25M

This new option, tolling at peak times, appears to move more people by both car and transit than the widening, yet saves hundreds of millions of dollars. Even without this option, it's likely that widening the road at such cost, and with all the disruption it will cause, is not worth gaining only a few percentage points of extra movement.

The metric of "peak period congested VMT" measures the wrong thing. This is the amount of vehicle miles traveled that happen in an uncongested road. But congetion, per se, is not the problem; a short drive in traffic is better than a long drive without it. The goal is to move people, or more accurately, get people where they need to be.

There were plenty of flaws with this study from the start. This assumes, as the "baseline," that Virginia has implemented every change in the regional Constrained Long-Range Plan (CLRP). That includes adding the 3 "spot improvements," which would already widen I-66 in several places; and changing I-66 to HOV-3 and assuming that nobody cheats the HOV restrictions.

The CLRP also includes some projects which will help in the I-66 corridor but have no funding today, like lengthening all Metro trains to 8 cars and adding new bus service in the area. Hopefully these will happen, but there's no guarantee.

A better study would have used today as the baseline, and looked at the CLRP changes like the "spot improvements" as some of the options. After all, if another change helps more, it's far from too late to build that instead. We would also then be able to better see the effects of this phantom bus service, though I'm told the full report does provide more detail on the effects of these proposals.

BeyondDC reminded me yesterday about a flowchart I made back in 2009. I've updated it slightly:

Is the urge to widen I-66 coming from engineers who can't shake the paving habit, or political pressure from above? If a transportation agency is unwilling to actually recommend anything other than widening, regardless of what a study shows, then that study really is the sham as people accused, and I feared, at the time, and VDOT might as well change its name to Virginia Department Of Paving Your Community.

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Very few people will keep a bike that long. The purpose of bike sharing is for short point to point trips, not long rentals. But a lot of folks initially placed the system into their mental box of "bike rentals," and evaluated it accordingly. That'll pass, if it hasn't already, once people actually get to try using it.

Last night, at a public meeting in Brooklyn Heights, a few residents argued against bikeshare stations on their streets. Bikeshare supporter Mike Epstein (who's also a personal friend) tweeted some of the objections from the meeting:

Has a single station in DC turned into a "place for people to hang out"? Not that I'm aware. But some people worried about that here, too.

A BID employee from Montague Street, in Brooklyn Heights, wanted to keep 5 parking spaces instead of add 39 bikeshare docks, while a MetroTech BID representative was pleased there aren't stations in their area.

DC residents know what will happen:

The system will open, and residents will realize that bike sharing is nothing like their worst fears. Neighbors will clamor for stations. Actually, many already are. Residents in Park Slope, which isn't getting Citibike yet, are eager for expansion.

Meanwhile, pass the popcorn.

Rob Pitingolo has done a lot of research on which places have more or fewer people with college degrees. DC has the fourth most college degrees per square mile of any city in the nation, but that doesn't apply everywhere in the region or everywhere in DC.

Rob created these maps that show the locations of people with and without college degrees aged 25 and over.

There seems to be a fair amount of mixing in Virginia, but in DC and Maryland, the divide is starker. East of the Anacostia, blue dots are very few; west of Rock Creek and in the central city, they overwhelm the pink dots.

A lot of news stories talk about the DC region in terms of the division between black and white. The city's history of racial segregation has left a legacy of educational and socioeconomic inequality. As a result, many commentators use race as a simplistic shorthand for conflicts that are really about college educated versus not, or wealthy versus poor, or young versus old.

Race is immutable, but other characteristics are not. If our divisions are really about black versus white, they're not going to change unless some people move out of the city, and that's not what we want to happen. But education levels can change, and it's good for everyone if we can help all people in our region access better education.