Digital Library on Green Mobility

Glossary

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Level 3 Charging

Also known as DC charging, the fastest method of charging for all EVs. It can fully charge an EV battery in about half an hour. Level three chargers are currently rare as they’re very expensive and require more power. 

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Liquefied Natural Gas (LNG)

Natural gas that has been converted to liquid form by compression at moderate pressure and cooled to -258°F. The volume of natural gas as liquid is 1/600th of its volume as gas, improving the cost and safety of non-pressurized storage or transport. 

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Liquefied Petroleum Gas (LPG)

A group of hydrocarbon‐based gases derived from crude oil refining or natural gas fractionation. They include propane, propylene, normal butane, butane, butylene, isobutene A‐14 and isobutylene. 

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Lithium-ion Battery (LiB)

Also known as a Li-ion, it is a common rechargeable battery. 

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Manufacturer’s Claimed Range and Efficiency

This has traditionally been the most optimistic measure, achievable in specific circumstances. Often the manufacturers would use numbers derived from the “NEDC” cycle. 

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Mass Rapid Transit (MRT)

High performance transport system for transporting passengers in urban areas, mainly relying on rail systems. Also known as mass transit, subway, underground or metro. Due to their unprecedented traffic density, MRT systems are known to be the backbone of urban transport. They usually belong to a Public Transport authority. 

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Methane (CH4)

A colourless, odourless flammable gas that is the main constituent of natural gas. It is the simplest member of the alkane series of hydrocarbons. It is a greenhouse gas with a global warming potential estimated to be 96 over 20 years (GWP20) and 32 over 100 years (GWP100). The GWP100 of carbon dioxide is equal to 1. 

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Micro Transit/Micro Mobility

Usually referred to as short distance transport on the Last Mile. It can include walking. Common services dedicated to micro mobility are bike and electric scooter sharing. Micro transit is sometimes also referred to on-demand mini vans or buses. 

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Mitigation

Used in the context of climate change, a human intervention to reduce the sources, or enhance the sinks of greenhouse gases. 

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Mobile Combustion

Emissions from the combustion of fuels in transportation sources (e.g., cars, trucks,  buses, trains, airplanes, and marine vessels) and emissions from off‐road  equipment such as what is used in construction, agriculture, and forestry.