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Clean Air Program Renews Contract for Truck Replacement


The Southeast Los Angeles County Gateway Cities Clean Air Program has awarded TIAX a $712,500 contract for the upcoming year to oversee the replacement of older, heavy-duty trucks in the Los Angeles area with newer, lower-emission vehicles. TIAX has done this since 2002, and has coordinated the replacement of approximately 350 trucks with newer vehicles.

Through the replacement of the older trucks, it is estimated that up to 4 tons of nitrogen oxides emissions and up to 1 ton of diesel soot emissions are reduced for each truck over its assumed remaining life of five years.

In addition, the company will see that trucks purchased during this phase of the program are equipped with special retrofit devices that further reduce diesel exhaust emission levels, and global positioning systems that allow TIAX to track each truck’s activities and gain a better understanding of where emissions are being reduced.

The Gateway Cities region is the industrial core of Los Angeles county, and includes the Port of Long Beach, one of the busiest container ports in the United States.

The Gateway Cities Council of Governments created the clean air prorgam to provide financial incentives to help reduce air pollution in Southern California. The program is managed by the council in partnership with the Port of Long Beach, the California Air Resources Board and the US EPA.

Heavy-duty trucks that serve ports are some of the oldest and dirtiest on the roads today, so they create serious pollution problems for the surrounding communities and their citizens. The Gateway Cities Clean Air Program has provided an effective solution to this problem that benefits both the residents of southeast Los Angeles County and the truck drivers who serve the area. We are extremely pleased to continue our work with this initiative.

—Jon Leonard, project manager at TIAX

The Fleet Modernization aspect of the program compensates owners of 1986 or older trucks when they buy a 1999 or newer used diesel truck that is more reliable, cleaner, and fuel efficient. An average grant is between $20,000 to $25,000, but will vary depending on how old the truck is and how many miles it has been driven in the past two years. The engines of the old trucks are then destroyed to ensure that they can no longer contribute to air pollution in the region.

As an example, a typical used diesel truck costs about $35,000. Under the Clean Air Program, an owner could be reimbursed $25,000 of the purchase price, reducing the cost of the new truck to the grant recipient to only $10,000.

To qualify for the Gateway Cities Clean Air Program, a truck owner must be able to demonstrate that his vehicle has been used commercially in the South Coast Air Basin for the past two years. This 6,600 square mile area includes all of Orange County and the non-desert portions of Los Angeles, Riverside, and San Bernardino counties. They also must agree to continue their work in the South Coast Air Basin for the next five years.

The long-term goal of the Clean Air Program is to replace 3,000 existing heavy-duty vehicles, which represent approximately a third of the pre-1987 truck fleet in Los Angeles County. Funding comes from a collaborative of government agencies at the federal, state, and local levels.




If I were a trucker I'd would be looking for a hybrid powertrain for my new tractor. GM is building a hybrid powertrain for buses but not for trucks. Why not??? 18-wheelers use so much fuel each year and spend so much time in traffic jams it would make a hybrid pay for itself in a manner of months.


Depends on the area realy around here truckers are doing 90mph all the time. Also many trucks have to keep the engine running anyway to keep various systems onboard operational.


Hybridisation involves more than just the powertrain. The compressor for the air conditioner could be driven electrically. Power steering could also be an electric system. Replacing the air brake system with an electric system would eliminate problems with leaking hose connection and corrosion from water condensing in the tanks. In the winter ice sometimes would plug in the lines and leave the brakes locked up.

W.D. Zeller

The one thing that no one talks about these days, especially the environmentalists, is how much more fuel the new "eco-friendly" diesel engines consume compared to "older, archaic polluting" engines. A new 2005 diesel engine, compared to an apparently 2004 model, will use approximately 60% more fuel due to the new pollution requirements imposed by the E.P.A. Basically, to meet the new requirements the manufacturers have had to retard engine timing which results in the guzzling of fuel.

Could someone tell me how in the hell these new diesel engines, which consume 60% more fuel compared to pre-2005 units, are more environmentally and economically desirable?


Azure Dynamics has produced a hybrid powertrain for trucks up to class 7.

The Parallel Hybrid Powertrain is designed for use in vehicles weighing 18,000 - 33,000 lbs GVW. The vehicles in this class are typically used for shipping and receiving large quantities of goods.

Here's a link to a photo of their truck:

Here's a link to their website:


First, I have to point out that the 60% number is way overblown.

Second, on the contrary, there is quite a bit of discussion about the limits to improvements in fuel consumption to accomodate more stringent emissions regulations—and a great deal of effort (time and money) on the part of automakers to work out solutions.

However, you still need to look at the overall LARGE improvement in fuel consumption that a diesel platform provides over a gasoline platform.

Quick example: the New Beetle, Model year 2005. Gasoline model delivers 27 mpg. Diesel model delivers 41 mpg— an improvement of 52% over the gasoline.


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