Clean Transportation

Guidance and Definitions

Clean transportation activities at each level of the ASI sustainable transport hierarchy may be described as follows: Avoid/Reduce:

• Any operation that avoids the need to travel or reduces the length of travel, including through integrated land-use planning, and transport demand management18.


• Any operation that moves people or freight to a more sustainable and less polluting means of transportation, such as cycling, walking, buses, ferries, trains and trams.


• Any operation that reduces the emissions (both GHG and local pollutants) of vehicles or the transport system.

Core Indicators

A. Clean Transportation Projects  – Procurement and/or deployment of clean transportation (modal shift) Any operation that moves people or freight to a significantly more sustainable and less polluting means of transportation – Deployment of clean transportation (low emissions) Any operation that reduces GHG emissions and/or air pollutants per unit of service provided through, for example, fuel switch or technology switch taking account of fuel production and electricity generation, including projected changes19

B. Construction of Clean Transport Infrastructure20 – Construction, extension and/or improvement to core sustainable transport infrastructure e.g. constructing or electrifying train tracks, clean utility connections in port, constructing or improving bicycle lanes, bicycle parking and bicycle sharing schemes – Construction and/or improvement to the auxiliary sustainable transport infrastructure e.g. stations, terminals, electric vehicle charging infrastructure, network and traffic management systems, connected and automated transport technologies, smart mobility systems, and the development and deployment of alternative transport fuels


• Passenger-kilometres (i.e. the transport of one passenger over one kilometre) and/or passengers; or tonnekilometres (i.e. the transport of one tonne over one kilometre) and/or tonnes

• Annual GHG emissions reduced/avoided in tCO2–e p.a.

• Reduction of air pollutants: particulate matter (PM), sulphur oxides (SOx), nitrogen oxides (NOx), carbon monoxide (CO), and non-methane volatile organic compounds (NMVOCs)

Benchmarks: – Internationally recognized benchmark standards for Clean Transport (e.g. EURO VI Standard, IMO, MARPOL, and WHO guidelines for particulate matter concentration) – Internationally recognized tools for calculating Greenhouse Gases (GHG) in sustainable transportation projects such as the Global Fuel Economy Initiative (GFEI) in the IEA 2DS. – Internationally recognized benchmark standards for sustainable transport infrastructure. – IEC/IEEE 80005 -2:2016 for utility connections in port.

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