National Geographic

Bicycleinfrastructure``````Low levels ofcongestionand delays``````Protectedgreen space``````Low levels ofgreenhouse gasemissions fromtransportation``````Electric-vehicleincentives``````Legislative efforts tolower transportationemissions``````Low levels ofair pollutionCAIRORIO DE JANEIROSHENZHENFRANKFURT### LOS ANGELES20406080100 (best)EMBARK | DATA SHEETCITIES AROUND THE WORLD are striving to improve air qualityand provide better transit options to their citizens by embrac-ing environmentally friendly practices such as creating bikelanes, using alternative fuels, and offering incentives for elec-tric vehicles. A recent survey of a hundred international citiesranks how well municipal governments are doing at helpingpeople get where they need to go while also making citiesmore livable and attractive—and sustainable.ART: ÁLVARO VALIÑO. SOURCE: SUSTAINABLE CITIES MOBILITY INDEX 2017, PLANET SUB-INDEX, ARCADISTOWARDGREENERCITIES BY RYAN MORRIS AND KELSEY NOWAKOWSKIENVIRONMENTAL MEASURESSelected cities; higher numbers are better scores.HOW THE CITIES RANKCITY LOCATIONAfricaNorth AmericaSouth AmericaAsiaEurope``````Sydney,Australia(#61)``````Johannesburg,South Africa(#72)``````Mumbai,India(#84)``````Edinburgh,U.K. (#22)``````Boston,U.S. (#43)``````Seoul,South Korea(#11)``````Baltimore,U.S. (#25)``````Munich,Germany(#2)``````Berlin,Germany(#3)``````1 FRANKFURTGerman citiesscore high dueto advanced bikeinfrastructure,plentiful greenspaces, andlow greenhousegas emissions.``````28 SHENZHENDespite its rapidgrowth from fishingvillage to mega-lopolis of over10 million people,the Chinese cityhas developedsustainable transit.``````52 RIO DE JANEIROTo combat majorpollution, the Bra-zilian city launcheda 50-year strategyin 2015 to improveair quality and localecosystems byusing cleaner fuels.``````67 LOS ANGELESElectric-vehicleincentives andinvestments inpublic transit areimproving mobil-ity in the U.S. city,which is known forits epic traffic jams.``````97 CAIROThe denselypopulated Egyp-tian city strugglesto meet demandfor public transit.Offering a widervariety of transitoptions could help.