rcoutme
Emperor
Regarding worker rates: It also depends on which game version you have. In C3C the clearing of forests is much, much faster. Also, in earlier versions an industrious civ used to work twice as fast as a non-industrious one. This is also no longer the case. I saw someone above post that it is a 2:3 ratio which is likely. As for rounding the number of turns up, this is true only if you have a single worker (or multiple workers who do not fit into the number of turns evenly). If you have 3 industrious workers build a road, it will be built immediately. If you have 2 do it, it takes 2 turns. If you have one start and then another help the next turn, it still takes 2 turns, etc. Thus, the amount of work seems to be kept track of by the computer.
This is true even if the original worker is taken out of the project, as long as some worker is still there.
This is true even if the original worker is taken out of the project, as long as some worker is still there.