Implementation - Left or Right Convention

For the purpose of design inlet one-by-one, the left inlet is defined as the inlet that is on the left side (low station side) of the sag point on pavement design or sag bridge design. For crest bridge case, the left inlet is the low station side of the crest point. The right inlet is defined as the high station side of the sag point (or crest point on crest bridge). For bridge on a downhill slope (high station point is lower than low station point), the inlet will be always defined as left inlet. The uphill slope will have right inlets.