What signifies an area reserved for trams?

Answer: B — There may be white line markings, and a different surface colour or texture

Areas reserved for trams are usually marked by distinctive white line markings paired with a different surface color or texture. This helps to differentiate these areas from regular lanes for vehicles. Option A, blue line markings, are typically used to mark out lanes for buses. Option C, yellow boxes on the road, are commonly used for indicating no stopping or no parking zones. Option D, pedestrian crossings, are designated areas for pedestrians to safely cross roads and are not specific to trams.