Leif Ourston was a pioneer proponent of modern roundabouts in the United States, years before any had been built there. He opened his engineering company...
5 KB (636 words) - 20:16, 3 June 2023
Retrieved 15 June 2008. Ourston Roundabout Engineering, Inc (13 January 2010). "Leif Ourston receives Frank Blackmore Award". Ourston.com. Archived from the...
109 KB (11,693 words) - 03:05, 27 September 2024
Retrieved 15 June 2008. Ourston Roundabout Engineering, Inc (13 January 2010). "Leif Ourston receives Frank Blackmore Award". Ourston.com. Archived from the...
4 KB (359 words) - 22:35, 26 September 2024
Washington, DC: Federal Highway Administration. Retrieved July 1, 2012. Ourston, Leif; Bared, Joe G. (Autumn 1995). "Roundabouts: A Direct Way to Safer Highways"...
6 KB (768 words) - 03:49, 1 October 2024