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Running lights are on the bow (front) and are green to starboard (right) and red to port (left). A white stern (rear) light completes the three lights necessary on a sailboat. All three can also be together at the top of the mast, and are called a tri-light. If the boat can motor there will also be a steaming light half-way up the mast that must be on while motoring at night.
The green and white lights on a boat are very important for traveling at night. These lights indicate which end of the boat is which.
The green and white lights on a boat are very important for traveling at night. These lights indicate which end of the boat is which.
Red indicates the port (left) side of the boat, green indicates the starboard (right) side.
Sail boat is coming at you
Sail boat is coming at you
Sail boat is coming at you
On most motorcycles the green light is used to indicate that your transmission is in neutral. Neutral is located in between 1st and 2nd gear on a motorcycle. The yellow lights are likely your turn indicators.
You are approaching a powerboat head-on
You are approaching a sailing vessel - head-on
You are approaching a powerboat head-on
Traffic lights use Red Amber Green because Red has always been associated with danger and green with safety. The amber is an interim light, only used to indicate to an approaching vehicle operator whether the next change will be to Red (amber on its own UK, US) so the vehicle can slow down, or to Green (Red and Amber together UK) so the appropriate approach speed can be maintained.