Alignment Zoom is a free application that navigates you to alignments at select chainages. This program is very useful for users of Advanced Road Design.
If you have an alignment of significant length, this is a very handy tool to focus on a particular chainage location along the alignment. As you type in new chainage values or step chainages using the arrows, the drawing zoom updates. As you change alignments the drawing zoom updates. There is a play button to scan through the chainages at a selected speed.
Download this free program for AutoCAD Civil3D 2015, 2014 & Civil3D 2013 at the link below –