channel for explanation: 

Civil 3D, YouTube playlist

CIVIL 3D - Local Extrema
It just so happened that in my environment for 20 years there is no one who knew Civil 3D better than me ( I really realize my level of knowledge and see hundreds of people on the Internet who greatly exceed my knowledge of Civil 3D, but here is how many jobs I did not change, I was the best in terms of Civil 3D and autocad. I was often approached for advice. And so, I created a channel where I share Life hack.
If I explained something to someone more than 2 times, this is an excuse to record a video for YouTube.

Welcome to, the project that  distributes free geographic data routing OpenStreetMap routing for the world. 

Download OpenStreetMap Routing

 GPSMapEdit Portable map editing (OSM) software to add new geographical landmarks and features to your app .  Whether you're a professional cartographer or simply looking to add custom routing (points of interest )to your GPS navigation device; GPSMapEdit offers all the tools and features you need to make the most of your geographical data. With its user-friendly interface and robust set of tools, GPSMapEdit is the ideal tool for anyone looking to create custom maps and enhance the accuracy of their navigation system.