Bridges and Roads

[Dervish]

Too bad you can't build bridges across the rivers. Like it was in previous Civ2. Roads should differ between cheap roads, gravel and/or stone, which can be built really fast, and those asphalted ones, that cost more expensive. Very good point I saw in other Civ forum about Navigable rivers. Any rivers should be Navigable except small ones, and on big ones, only downstream wider parts of such rivers should be Navigable, again, as the case is in real life.
Railroads should be upgraded to maglev roads, may be, or to any other advanced form of transportation.