Why are the signals in railway opposite as compared to the road signals in India? i.e. from top to bottom Green, Yellow and Red.
Why do railway traffic lights have green at the top and red at the bottom but road signals are the other way?
Are there countries where the traffic lights switch immediately from green to red without passing by yellow? How red yellow green colors glow in traffic signals? Why do Loco Pilots wave green flags when two trains are crossing each other? Why highways don't have lights? Why don't highways have lights? Why do the loco pilots and the station guards wave green flags against each other when the train is crossing a station? Why do we see stones in between railway tracks? Why do express trains have a red light at the lower side of the last compartment? When neutral and ground wires get interchanged, there is flickering in the tube lights. Why? Why do so few drivers move forward at a regular green light (NOT a protected left turn arrow) when taking a LEFT turn after a red light turns green? What does a flashing green traffic light mean? Why do some drivers turn on their headlights in daytime? Why are there stones on railway tracks? Why are all traffic light colors, one color? Why are police lights red and/or blue? What is the possibility of building elevated roads above railway line? Why do several NYC subway lines share the same colour? What is the reason for concrete stones in between the railway track? If security cameras infra-red searchlights are below the range of human eyesight, then why do some cameras LED lights glow a dull red-ish colour at night? How do the railway networks work? Why the colour of wires in homes are black, green and red? How do rail lines work? Why are police lights red and blue? Why does railway traction wire consists of two wires? How railway network works? Why is on right wing of a plane, there is Green light and on left wing Red light? Is it legal to run a red light at intersections in order to yield the road to emergency vehicles? What do different lines and colors on the road mean in the US? Why are blue and red neon lights illegal or restricted for commercial uses in Mexico? Why the railway station boards are yellow?