 The report cited problems raised by two independent studies.While the CRC predicts ever increasing traffic, Robert Bain of London firm RB Consult Ltd. calls that into question, noting that "traffic volumes using the I-5 Bridge have flattened-off over the last 15-20 years; well before the current recessionary period.The clear inference is that the flattening-off is a long-term traffic trend; not simply a manifestation of recent circumstances".