What is the axle load of a fire truck?

§1411.1. Definitions. The following terms when used in this Chapter have the following meaning: (a) “Department” means the California Department of Transportation….Fire Truck Exemptions.

What is equivalent axle load?

Equivalent axle load factor: An equivalent axle load factor (EALF) defines the damage per pass to a pavement by the type of axle relative to the damage per pass of a standard axle load. While finding the EALF, the failure criterion is important.

How do you calculate equivalent axle load?

The equation outputs are load equivalency factors (LEFs) or ESAL factors….For example, given a flexible pavement with SN = 3.0 and pt = 2.5:

1. A 18,000 lb (80 kN) single axle, LEF =1.0.
2. A 30,000 lb (133 kN) single axle, LEF = 7.9.
3. Comparing the two, the ratio is: 7.9/1.0 = 7.9.
4. Using the fourth power rule-of-thumb:

What is a load equivalency factor?

Load equivalence factors measure the relative effects of different types of loadings on pavements. Stating, for example, that a given vehicle on a given type of pavement is 3.0 ESALs means that one pass by the vehicle has the same effect on the pavement as three passes by an 18,000-pound single axle.

Do fire trucks have to go through weigh stations?

Many states require that commercial vehicles weighing at least 10,000 pounds must successfully pass a check at a weigh station according to vehicle resource Your Mechanic. Thus, fire truck drivers are exempt from using weigh stations even though these trucks when full will easily exceed 10,000 pounds.

How heavy is a fully loaded fire engine?

Load weight: 12 tonnes.

What is axle load in highway?

The axle load of a wheeled vehicle is the total weight bearing on the roadway for all wheels connected to a given axle.

What is equivalent standard axle?

A Equivalent Standard Axle is defined as a Dual Tyred Single Axle transmitting a load of 80kN (or 8.2 tonne) to the pavement. • An ESA is an Equivalent Standard Axle. Standard Axle is. 5.4 tonne on Single Axle Single Tyre.

What is a standard axle load?

What is the formula for equivalent wheel load factor?

Equivalent Wheel Load Factor = (given wheel load/standard wheel load)4 = ( given axle load/standard axle load)4 i.e. EWLF = (P1/P)4 • McLeod assumes that the pavement thickness which are designed for a given wheel load would support one million repetitions of such load during the life of pavement.

What is the standard wheel load in WL factor?

What is the standard wheel load in Ewl factor? Explanation: The load is considered for only one wheel which is 4080kg, it is considered as the half of the legal load. Explanation: The rate of growth in traffic for urban areas is assumed as 7.5%, it may also vary depending on the requirement.

Is it illegal to go around weigh stations?

Failing to stop at any weigh station by disobeying a weigh station signal is illegal. The shortcut that saves truckers time and money is called “dodging the scales” by taking a detour.

Is there an equivalent live load for a fire truck?

I’m just wondering if anyone has determined an equivalent uniform live load that would simplify the design. Any help is greatly appreciated.

What is the equivalent single axle load ESAL?

ESAL is the acronym for equivalent single axle load. ESAL is a concept developed from data collected at the American Association of State Highway Officials (AASHO) Road Test to establish a damage relationship for comparing the effects of axles carrying different loads. The reference axle load is an 18,000-lb. single axle with dual tires.

How big is a point load for a fire truck?

The point load is for vehicles exceeding 9,000kg (20,000lbs) gross weight. Fire truck loading is considered a live load and factored as such.

How are general axle load equivalency factors used?

To obtain a universal summary measure of traffic loads, the use of general axle load equivalency factors, which are independent of pavement-related variables and axle configurations, is proposed. In this paper, the general axle load equivalency factors are called general axle factors and are abbreviated GAFs.