Section 3: Plan StandardsAnchor: #i1004298
This section explains some of the standard practices used in TxDOT highway illumination plan layouts.Anchor: #i1004308
Scale of Plans
Generally, a scale of 1:100 provides plenty of detail for lighting layouts. Underpass lighting sometimes requires 1:50. Other special lighting systems, such as tunnel lighting, may require more detailed layouts.Anchor: #i1004320
High mast lighting layouts should include soil boring logs. See the Geotechnical Manual (Bridge Collection) for details.Anchor: #i1037939
Standard Plan Symbols
TxDOT has developed standard illumination symbols to aid in plan preparation. Figure 6-1 explains these symbols.
Figure 6-1. Standard symbols for light poles used by TxDOT in plan preparation. Note that breakaway transformer base poles are represented by a square, and non-breakaway (or shoe base) poles are represented by a small circle.