I think most engineers would naturally support this idea. The reality is that doing something like this is pretty tough because the current system has so much

I think most engineers would naturally support this idea. The reality is that doing something like this is pretty tough because the current system has so much weight. It's akin to asking a company to abandon a perfectly functioning legacy software system just so that someone can rewrite it. My dad was an engineer with Caltrans and he told me about how California was ready to make the switch. It was going to be a gradual transition where signage would start listing both metric and imperial speed limits. They had actually gotten pretty far along into designing signs, etc. He told me that the state eventually killed it because no politicians supported it and there was no strong desire from the public. While I think this is a great idea, I don't have my hopes up. Apparently the state did a lot of work actually switching over to the metric system (all manuals, standards, etc. were updated to metric) but the plan was eventually aborted in favor of English units and much effort was then spent on switching back. :-/ http://www.dot.ca.gov/hq/oppd/metric1/DD-12-R1_Final.pdf http://www.dot.ca.gov/hq/oppd/metric1/DD-12-R1_Final.pdf http://www.dot.ca.gov/hq/oppd/metric1/metricpg.htm http://www.dot.ca.gov/hq/oppd/metric1/metricpg.htm