puffin crossing - definizione. Che cos'è puffin crossing
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Cosa (chi) è puffin crossing - definizione

TYPE OF PEDESTRIAN CROSSING IN THE UNITED KINGDOM
Puffin crossings
  • A puffin crossing control panel

puffin crossing         
¦ noun (in the UK) a pedestrian crossing with traffic lights which change to green again only when no more pedestrians are detected on the crossing by infrared detectors and mats.
Origin
1990s: puffin from p(edestrian) u(ser) f(riendly) in(telligent), respelled by analogy with pelican crossing.
Puffin crossing         
A puffin crossing (its name derived from the phrase "pedestrian user-friendly intelligent") is a type of pedestrian crossing in use in the United Kingdom.
NASA Puffin         
TYPE OF AIRCRAFT
Puffin (NASA); NASA Puffin (aircraft)
The Puffin is a 2010 concept for a hover-capable, electric-powered, personal vertical takeoff and landing (VTOL) technology-concept proprotor aircraft. The concept design was projected to be capable of flying a single person at a speed of 150 miles per hour (241 km/h), with range expected to be less than 50 miles (80 km) with 2010-vintage Lithium-iron-phosphate battery technology.

Wikipedia

Puffin crossing

A puffin crossing (its name derived from the phrase "pedestrian user-friendly intelligent") is a type of pedestrian crossing in use in the United Kingdom.

The design is distinct from the older pelican crossing in that the lights signalling to the pedestrians are on the same side of the road as the pedestrian, rather than across the road. From 2016, pelican crossings began to be phased out in the United Kingdom, to be replaced with puffin crossings.

They have two sensors on top of the traffic lights (PCD – pedestrian crossing detector, and PKD – pedestrian kerb detector). These sensors detect if pedestrians are crossing slowly and can hold the red traffic light longer if needed. If a pedestrian presses the button but then walks off, the PKD will cancel the request making the lights more efficient.