If you have a question on this article, please PM Rochefort or make a thread in the Omnibus Feedback Forum! This is a brief explanation of the basic uses of smoncrie’s hole digger lots for creating tunnels and channels for sunken transportation routes.First up are the hole digger lots used for creating tunnels. Although I have shown each lot producing it’s intended tunnel i.e. the highway digger lot producing a tunnel for a highway, each lot can be used for any transportation mode. Next is a basic explanation of the combinations resulting from the use of smoncrie's hole digger lots to produce channels for transport networks and the visual effect created when you lay bridge puzzle pieces across them with the NAM Each hole digger lot produces a particular depth or height if you're using the ground lifter lot. Although they were originally created for tunnelling, they can be used for producing sunken/raised transport routes. The optimum depth/height is 15m from ground level. This will enable you to create a perfectly straight bridge. All other measurements will produce a slight (or extreme) variation. You can also expand the area in question using either a further row of hole digger lots or by the single road tile method. For example, I regularly expand the sunken lot to two-tile width for sunken avenues/highways instead of using the hole digger allocated for that purpose. The best way for you to understand this is to see the alternatives, using a road bridge as a constant in the theme. 8m Rail Channel 10m Rail Channel 15m Raised Bank 14m Road Channel 17m Road Channel 15m Sunken Channel 14m Avenue Channel 12m Ground Highway Channel 23m Monorail Channel 26m Monorail Channel If you have a question on this article, please PM Rochefort or make a thread in the Omnibus Feedback Forum!