fargesignaler
Fargesignaler, or color signals, are signaling devices that communicate information through color rather than words or mechanical positions. They are used in systems where quick, universal interpretation is advantageous, and they operate across several domains, including transportation, maritime signaling, and industrial automation. The basic principle is that different colors convey different actions or statuses to observers, often with additional context provided by the arrangement or sequence of signals.
Historically, fargesignaler evolved from visual signaling methods such as flags and semaphore to electrically powered lamps
Common domains and characteristics:
- Road traffic signals: color-based signals regulate vehicular and pedestrian movement. The familiar red, amber, and green
- Rail transport: color-light signals indicate permissions and restrictions at signals and interlockings, often using multiple aspects
- Maritime signaling: colored lights and signal flags communicate navigation and safety information between ships and shore
- Industrial automation: colored indicator lights on equipment convey machine status, faults, or operating conditions.
Challenges include ensuring readability under varying lighting conditions and accommodating color vision deficiencies. Standardization is domain-specific,