FSX/P3D. For those of you following the progress on Chris Bell's Black Marble project which is essentially Night Environment enhanced for the entire world, the team has just announced a new never before seen element to enhance your virtual flying experience. Introducing 3D road bridges with multi levels that naturally weave and crisscross intersecting with each other which will replace the flat 2 dimensional crossings we are currently used to. Plan is to cover the entire world as part of Black Marble all of which will be fully lit at night. More info via the source link.