A new study has found that the PierPass OffPeak program at the Ports of Los Angeles-Long Beach has diverted more than 9 million truck trips from peak daytime traffic since the program began in July 2005.
PierPass in an announcement said the nine-millionth truck trip occurred during the week of June 23.
The program is designed to reduce truck highway congestion and pollution by moving container traffic from peak weekday periods to less-busy nights and weekends.
OffPeak shifts handle an average of 68,000 truck trips in a typical week, or about 40 percent of all container moves at the two ports on days with both peak and OffPeak shifts.
Under the OffPeak program, all international container terminals in the two ports have established five new shifts per week (Monday- Thursday 6 p.m.-3 a.m. and Saturday 8 a.m.-6 p.m.). A Traffic Mitigation Fee is required for most cargo movement during peak hours (Monday-Friday, 3 a.m.-6 p.m.), and covers the cost of operating the non-peak gates.
PierPASS said it retained an independent economic research and strategic planning firm, BST Associates, to conduct a review of the program. It found that "[t]he OffPeak program has caused a significant shift of port truck traffic from day to evening hours. Without the financial incentive of the OffPeak program it is likely that traffic would shift back to daytime peak hours. The OffPeak Program has met its objectives and should be continued."
The study reviewed Caltrans traffic data collected on freeways near the ports. "At the traffic counter closest to the ports (I-710 at Route 1), the share of truck traffic moving off-peak grew from 10 percent in 2004 (prior to the OffPeak program) to 32 percent in 2007.