Data, Technology & Verification Systems
Autonomous vehicle (AV)
A vehicle capable of performing driving tasks without continuous human control, classified by SAE automation levels 0–5 — with significant, contested implications for transport sustainability.
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A motor vehicle equipped with an automated driving system able to perform part or all of the dynamic driving task (steering, acceleration/braking, monitoring the environment). The standard SAE J3016 classification defines six levels, from Level 0 (no automation) to Level 5 (full automation under all conditions); at Levels 3–5 the system performs the entire driving task while engaged, with decreasing expectations of human fallback.
References
Six-level classification; dynamic driving task; Level 0–5 definitions and fallback expectations.
SAE levels adopted by US DOT and UN; driver vs system responsibility at each level.
Overview
What it means
AVs cut both ways for sustainability. Potential benefits include smoother, more efficient driving, platooning, shared fleets reducing vehicle numbers, and mobility for people unable to drive. Risks include induced demand (easier travel generating more trips and kilometres), empty "zombie" mileage, urban sprawl, and the energy footprint of sensors and computing.
The net effect depends on whether AVs are shared, electric and integrated with public transport — or private and additional.
How it is used
Deployment today concentrates in ride-hailing pilots and driver-assistance features; regulation addresses safety certification and liability. In sustainability planning, AVs appear in scenarios for decarbonising road transport and in debates over future urban form and public transport viability.
Why it matters
Road transport is a major emissions source; whether automation amplifies or reduces its footprint is one of the open questions of transport decarbonisation — a governance choice more than a technological given.
Definitions and controversy
Marketing usage of "self-driving" often outruns the SAE definitions; most consumer systems are Level 2 (driver responsible), not autonomous in the technical sense.
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