Superelevation transition is often used to help balance the centrifugal forces on vehicles through curved roadway sections. Such transitions have regions with near-zero cross-slope as the pavement cross-section rotates ...

The American Petroleum Institute (API) Publications Numbers 4682 (1999) and 4729 (2003) provide an overview of recovery technologies for petroleum hydrocarbon liquids that are released to the subsurface environment and ...