Developing conceptual design layouts for physical infrastructure such as roads and highways right in the browser
https://cad.onshape.com
http://www.tinacloud.com/
http://smartdraw.com/
https://www.tinacloud.com/
vhrebenko
jornamerio
https://bhikadia.com
http://drawingpad.chromecrxstore.com/
http://www.processon.com/
