How C40 Cities Are Implementing Zero Emission Areas
As at Spring 2020, 35 global cities have set out to establish a significant area of their city as zero emission by 2030 as part of their commitment to the C40 Green and Healthy Streets Declaration. This document analyzes the approaches being taken by some leading cities to implement a zero emission area (ZEA). Designating a significant area of the city as “zero emission” by 2030 will require holistic and multi-faceted
thinking and a timetable of strategic actions designed to shift the whole urban system on to a zero emission trajectory. We have two main audiences in mind for this analysis: decision-makers in signatory cities who are interested in comparing approaches and ambitions in other cities; and those in non-signatory cities who are contemplating signing the C40 Green and Healthy Streets Declaration and are seeking inspiration on how they might achieve those commitments. To achieve a ZEA by 2030, cities are already working on interventions in 2020. Four distinct implementation progressions are emerging:
Street based pilots: A hyperlocal initiative in which very strict access restrictions are introduced on a few streets from 2020 onwards with an expansion programme towards 2030. Examples: Oxford
District-scale design: A plan to transform an entire area, beginning in 2020. A timetable of significant interventions to support shifts towards public transport, walking and cycling which ultimately will lead to less overall vehicles in the area by 2030. Examples: Oslo and Auckland Vehicle regulation cordons: Concentric cordons of urban vehicle access restrictions (UVARs), with the strictest regulations at the
centre, are being introduced. Dirty vehicles are being phased out and cleaner vehicles phased in. By 2030, a clearly cordoned area of the city will permit zero emissions vehicles only. Examples: London, Milan, Seoul and Barcelona Timetable to a ZEA in 2030: a published pathway and timeline of interventions for
the area to 2030. Examples: Amsterdam.
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