73. Dan Burden, Executive Director of the Walkable and Livable Communities Institute (@DanBurden): Dan Burden's commitment to walkable and livable communities goes way back to 1980, when he served (for the next 16 years) as the country’s Bicycle and Pedestrian Coordinator for the Florida Department of Transportation, and was the first to hold such a position in the country. Today he is executive director of the Walkable and Livable Communities Institute, which supports communities' commitments to walkable city streets and built environments that promote healthy living.
74. Peter Calthorpe, architect and urban planner: Calthorpe, a San Francisco-based architect and urban planner first introduced the concept of Transit-Oriented Development (TOD) in 1993 in his book, The Next American Metropolis: Ecology, Community, and the American Dream. In this work, he provided extensive guidelines and illustrations of their broad application, paving the way for a new age of planning practices that favor sustainable transit.
75. Robert Cervero, Director of the Institute of Urban and Regional Development (IURD); and Director of the University of California Transportation Center (UCTC): Cervero is an inspirational and influential longtime leader in the realm of transit-oriented development (TOD) and a strong proponent of car sharing and land use policies that favor sustainable transportation.
76. Isabel Dedring, Deputy Mayor, Transport, City of London (@Isabel_Dedring): Described by city hall colleagues as an "alpha female," Dedring is an avid supporter of cycling in London, is investing in upgrading London's road network, and is charged with overseeing the modernization of the Tube, the world's oldest metro system.
77. Projjal Dutta, Director of Sustainability, NY MTA (@projjal): As director of sustainability for New York's Metropolitan Transit Authority, and an advocate for low- to no-carbon transportation and car-free cities, Projjal Dutta is helping to pave the way for more efficient and sustainable transit in New York City and cities worldwide.
78. Jurandir Fernandes, Secretary for Metropolitan Transport, State of São Paulo: Secretary Fernandes is a great global leader in the realm of urban mobility, holding numerous positions, such as vice president of the International Union of Public Transport, Brussels, and board member of the National Association of Public Transport, São Paulo. As Secretary for Metropolitan Transport in Sao Paulo, Fernandes is overseeing the development of a new subway line, running through the neighborhood of Higienopolis, which is being financed almost entirely by private investors.
79. Walter Kulash, Principal and Senior Traffic Engineer, Glatting Jackson Kercher Anglin Lopez Rinehart (Orlando-based community-planning firm): Since the early 1990s, Walter Kulash has been advocating "livable traffic design," whereby the goal is not to get the most people moving as quickly as possible, but to promote streets as retail-friendly public spaces for communities.
80. Ryan Rzepecki, CEO of Social Bicycles: Ryan Rzepicki lands on this list for his unique effort to bring affordability and accessibility to bike-share. With his company, Social Bicycles, Rzepecki is working toward removing a bike-share barrier -- the docking station -- by deploying GPS-enabled bikes that work with regular bike racks, giving people more control over where they pick-up and drop-off.
81. Janette Sadik-Khan, Transportation Commissioner, New York City (@JSadikKhan): In the past six years, Janette Sadik-Khan has transformed the city of New York with the widespread introduction of pedestrian plazas, bike lanes, and now a massively successful bike-share program, Citi Bike -- all of which has made New York's streets more livable, efficient, and profitable. She shares her vision for livable streets nationally as the president of the National Association of City Transportation Officials (NACTO). Her strong leadership has influenced, and will continue to change, cities all over the globe.
82. Dr. Niklas Sieber, Managing Director and Senior Transport Economist, TCP International: Niklas Sieber is a longtime advocate of sustainable transportation planning and his influence is felt within and far beyond his region of Stuttgart, Germany. Indeed, alongside colleague Olaf Scholz-Knobloch, he's presented solutions for improving mobility in developing cities like Sao Paulo, where car culture is on the rise.
83. Donald Shoup, Distinguished Professor of Urban Planning at UCLA (@DonaldShoup): In addition to his position at UCLA, Dr. Shoup is an Honorary Professor at the Beijing Transportation Research Center, as well as the author of The High Cost of Free Parking, which discusses the need for better parking policies in cities and how these can improve the economy and environment.
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