A puffin crossing is a type of pedestrian crossing used in the United Kingdom. It is named after the phrase "pedestrian user-friendly intelligent". The design of a puffin crossing is different from the older pelican crossing in that the lights signaling to the pedestrians are on the same side of the road as the pedestrian, rather than across the road. Puffin crossings have sensors on top of the traffic lights that can detect whether any pedestrians are on the crossing and control the color of the lights accordingly. Once the control button has been pressed, the lights will only change back to green once the crossing is clear. Puffin crossings also use smart traffic lights that incorporate sensors to detect pedestrians, allowing the crossing to monitor its users until they have safely crossed, all while it operates the traffic lights accordingly.

Here are some key features of a puffin crossing:

• The red and green man pedestrian crossing symbols are displayed on the yellow and black box above the crossing demand button.
• The traffic lights will stay red for vehicles until the sensors detect that everyone is safely off of the road.
• Puffin crossings are safer for pedestrians because the sensors that see you at a Puffin crossing also control the traffic lights, making sure you have enough time to cross the road safely.
• Partially-sighted pedestrians can see the red/green figure signals more easily than a signal on the other side of the road.

Puffin crossings are gradually replacing pelican crossings in the United Kingdom. While concerns have been expressed that puffin crossings may be less safe than pelican crossings due to the nearside indicator not being visible while crossing, and being at a different focal length, reducing traffic awareness, a 2005 study commissioned by the DfT found that puffins were safer than pelican crossings with fewer pedestrian accidents and fewer involving cars, despite confusing pedestrians.