long line of motorcyclists riding down a wide avenue lined with trees in a city

long line of motorcyclists riding down a wide avenue lined with trees in a city. Most of the motorcyclists are wearing white helmets and what appears to be olive green uniforms with reflective stripes on the back. The motorcycles have red taillights, and the line stretches far into the distance. A few people are walking on the sidewalk alongside the street. Buildings are visible in the background. The lighting suggests it is early evening or late afternoon.