I am opening this thread to see how people approach sidewalks and foundations. I will start by showing how I do them. My way is no doubt neither the right way or the best way. My object is to learn any tips and tricks that people are doing.
To start, my layout has no strict era, but as most PostWar kids, I am partial to the steam/diesel transition (because the Lionel catalogs of my youth were all about the steam/diesel transition, whether intended or not). However, modern motive power can be seen on my railroad (thank you, Norfolk Southern for your Heritage Diesels!). I am a city boy, so industrial and urban America is what I want to create. Specifically, an urban scene capturing the feel of a Bronx commercial neighborhood from the 50-60s is what I am trying to model on the north end of my 6X16 home layout.
By the way, this area is called, "Grand Army Plaza".
Peter