During the time of semaphore signals these structures housed the interlocking mechanism to control signals, they are still used for electronic sub-systems. A tradition in India is to always have a attendant give a green flag or signal to a passing train. Here is one leaving away from the Delhi station on my layout.
A double crossover is a very complicated track switch where two parallel tracks can be switched in both directions. here is a picture of one on my layout.
A picture of DCC enabled fireless steam engine, exactly like the prototype in the Rail museum in Delhi
A real oddity in locomotive design, this type of small shunting engines were filled with steam from an external boiler and then used to shunt wagons. They were generally used where actual files were not allowed due to combustion issues, mainly factories and plants. India had one of these types a 0-4-0. It is displayed at the National Rail Museum in Delhi
Here is a picture of my under construction Sawai Madhupur station on the upper deck. Sawai Madhapur is famous for having a renowned Tiger sanctuary Ranthambore. The station building are old Colonial types, made with red bricks,; which currently have been replaced. The small town is on main Delhi to Bombay route. The Ranthambore Fort and National park are a must visit for seeing tigers in the wild.
I am in the process of creating the Swai Madhupur Junction, station on the upper deck. Here is a video of my WL-130 puffing smoke as it goes under a covered over-bridge between the two platforms.
Gauge refers to the distance between the tracks, a number of gauges are used in India
Broad Gauge: 5 ft 6 in
Meter Gauge: 3 ft 3 3⁄8 in
Narrow Gauge: 2 measurements: 2 ft 6 in) and 2 ft These are used for mountain railways like Darjeeling Himalayan railway and others.
Here is a picture of three gauges at one place near Siliguri, India
The broad gauge which is 5 feet 6 inches distance between the rails is used in the Indian Subcontinent and in a few other places. This is different than most of the world where standard gauge which is 4 feet 8.5 inches Here is an article explaining Broad gauge
Fiat 1100 were produced in India for a long time. Renamed Premier Padmani in later years. They remained unchanged for many years. They were the Taxi of choice in Bombay. My dad used to own a few and even a 'Estate' model which was reconfigured like a station wagon.
Here is a convertible Standard Herald (Similar to the one I used to own) in between railroad tracks. The crossing is as yet unmanned.
in the 60's the cool car in India was a local manufactured Triumph automobile called Standard Herald. I used to have one of these in college in Madras in early 70's, a convertible red one with white upholstery. It was under powered and mechanically a dud, but was great fun. Here is a picture of one
Here is a fire truck near the Bombay station, note the brass bell on the left side roof of fire truck.
I am of Indian descent and moved to the USA in Mid 1970's. Model Railroads and Model Remote Controlled Aircraft are my two hobbies both of which I have been pursuing since my childhood in India.