How many industries you have depends on what industries you want to use. A coal mine will take up alot more room than a small factory but will generate more traffic. The size of the buildings you want to use matters alot. Off hand i'd say you should be able to get at least 6 in that space if you're creative.

It seems counterintuitive, but you can fit more in if you don't use those 18" radius "standard" switches and opt for #4s and #5s instead. In fact, other than making loops of track for train set running, I can;t think of a good reason to use the "standards" at all.

This video shows one man's solution in a 4x8 space: 
https://www.youtube.com/watch?v=cxcpLD6f-sc

I use an NCE system, and have had to use the same solution of putting a 1K ohm resistor across the tracks as Jeff mentioned.  Also have to do this with some non-Bachmann sound decoders.

Len

I can't speak for NCE because I use DIgitrax. But i've had a similar experience with programming Bachmann decoders, and for me the workaround is to put a 1000 ohm resistor across the rails of the programming track. I've soldered the ends of the resistor to alligator clips to make it easy to hook up as not all decoders require its use. Try it on your system and see if it helps.

What's the best number or what's the maximum number of industries that should be or could be to put on a 4 x 8-foot layout.

This pertains to HO scale modelers.  The reason I ask this is....   I think I've overwhelmed my layout by trying to place too many industries on my new section of 4 x 8 or I may have too much track on that same 4 x 8.  I thought this section would be my industrial park, but again I don't seem to have enough space for both the track and industries that the track should be able to support.   I'd show images of my layout but, after looking through Sheldon's layout, I'm too embarrassed to show my behemoth, and it's nowhere near completion.  So I'm scratching my head, (and my kids are of no help) in how to place all of what I envisioned as an industrial park with rail access.

Everyone's thoughts are welcomed, cause at this juncture, I'm hoping I haven't overspent on buildings, scenery and well, one never has enough track, cause I'm always modifying the track.

I have a NCE Power Cab. I ordered 2 Bachman DCC on board trains, one with sound. I cannot program them with my own address. I have to use the default code for both of them. Is there an issue with Bachman trains and NCE Power Cab?

Basic question: did you call Bachmann parts department?

At least we know why Bachmann just chooses to do CGI engines because kids who watch the show are more familiar with them.

Just on the off chance. I need this part is it available anywhere, in someone's parts box, a clever person who 3d prints them etc.
I can't upload a picture so I will have to describe it:
It's the female part of the universal joint between the steam engine and rear truck part number OYAO1

I have ordered a pair of replacement trucks. Does anyone have any info or advice for fitting them, their voltage etc.

With the new Thomas series on the horizon, I wonder if Bachmann would make anything from it. There is bound to be new characters, and it would be interesting to see Bachmann handle them. Would they be 1-to-1 with their models, or maybe be redesigned slightly to fit the more "classic" look that Bachmann aims for? I do doubt Bachmann would update their models to align with the new series, since that would be a lot of effort, and Mattel still does seem to be using the classic CGI Thomas (Such as in Wonders of Sodor).

Just some thoughts I had, interested to see anyone else's perspective on this.