When designing lighting for prototypical scenes (i.e. ones that reflect real life), especially those of a bygone era, the style of lighting is very important. One of the features of street lighting through the first two thirds of the 20th century was directional lighting. In other words, the light shone directly down onto the path or road or subject without a huge flare to it. It created a spot.
When choosing the type of lighting on your layout it is therefore critical to ask the question, what sort of light am I after. Do I want directional or flared lighting? Fiber Optics can provide either.