Four crossing points (two with traffic lights, in this case), whereas for a "normal" interchange, you'd get...also four crossing points. diverging diamond: htt

Four crossing points (two with traffic lights, in this case), whereas for a "normal" interchange, you'd get...also four crossing points. diverging diamond: https://www.openstreetmap.org/directions?engine=fossgis_osrm_foot&route=38.81993%2C-77.63737%3B38.81679%2C-77.64198#map=17/38.81836/-77.63967 https://www.openstreetmap.org/directions?engine=fossgis_osrm... cloverleaf: https://www.openstreetmap.org/directions?engine=fossgis_osrm_foot&route=38.74104%2C-77.52235%3B38.74408%2C-77.51356#map=17/38.74261/-77.51798 https://www.openstreetmap.org/directions?engine=fossgis_osrm...