#need to update FERRY column with yes or no values if ferry crossing is available in feature field
delimfield = arcpy.AddFieldDelimiters(fc, "FERRY")
cursor = arcpy.da.UpdateCursor(fc, ["FERRY"])
for row in cursor:
    if row[0] == "ferry crossing":
        cursor.updateRow("FERRY")
        print "YES"
    if row[0] is not "ferry crossing":
        cursor.updateRow("FERRY")
        print "NO"

del row
del cursor

#if feature is ferry crossing == YES in FERRY field
#if feature is not ferry crossing == NO in FERRY field