A system for determining an amount of shelf space comprises: a plurality of weight sensors at a region of a shelf that directly measure a force related to a weight of physical items positioned on the shelf and generates a weight result, the shelf positioned at an angle from a horizontal axis; the shelf positioning the physical items at the angle; a shelf angle determination device that determines the angle of the shelf; wherein the weight sensors generates the weight result adjusted for the determined shelf angle; and an occupancy determination processor that determines an amount of surface area of the shelf occupied by the physical items from the adjusted weight result.

A system for preventing the evaporation of liquids from tack coat by sealing the testing pad inside an enclosure immediately after the tack coat is applied comprising a sealed enclosure and testing pad. The weight of the testing pad before and after tack coat application is used to calculate the calibration rate of the tack coat. Thus, by sealing the liquids inside the enclosure, the proper second weight of the testing pad is obtained resulting in an accurate calibration rate and application of tack coat on asphalt. The system further includes affixing a weighted material to the testing pad prior to placing the testing pad on asphalt and spraying the tack coat during asphalt calibration to remove the need to tape the testing pad and prevent shrinkage and movement of the testing pad during application of the tack coat.

Real time monitoring and comparison of bucket payload and truck payload during a loading process allows calculation of material lost in transfer between the loader and the truck. The lost or spilled material represents increased costs due to additional trips of the loader to fully load trucks and also in non-value added worksite cleanup time. The payload monitoring system can not only evaluate the mass of material lost over a period of time but can also calculate the value of that lost material using real time commodity pricing. The period of time can range from a single bucket dump to a workshift or longer. Payload masses and/or calculated values may be communicated directly between vehicles or may be communicated in conjunction with a central station.

Real time monitoring and comparison of bucket payload and truck payload during a loading process allows calculation of material lost in transfer between the loader and the truck. The lost or spilled material represents increased costs due to additional trips of the loader to fully load trucks and also in non-value added worksite cleanup time. The payload monitoring system can not only evaluate the mass of material lost over a period of time but can also calculate the value of that lost material using real time commodity pricing. The period of time can range from a single bucket dump to a workshift or longer. Payload masses and/or calculated values may be communicated directly between vehicles or may be communicated in conjunction with a central station.

Provided are methods for measuring residual amount of product remaining on a plastic product package for qualification of entry into a recycling program, the method including: determining whether a residual amount of product from the plastic product package is less than a qualifying amount for entry into the recycling program, where the plastic product package comprises a plastic package and the amount of residual product.

Provided are methods for measuring residual amount of product remaining on a plastic product package for qualification of entry into a recycling program, the method including: determining whether a residual amount of product from the plastic product package is less than a qualifying amount for entry into the recycling program, where the plastic product package comprises a plastic package and the amount of residual product.

Methods and apparatus to identify loads lost from vehicles are disclosed. An example apparatus to identify a load lost from a vehicle includes at least one memory, machine readable instructions, and processor circuitry to at least one of instantiate or execute the machine readable instructions to determine a first load carried by the vehicle at a first time, determine a second load carried by the vehicle at a second time after the first time, identify a lost load occurrence in response to a load difference between the first load and the second load satisfying a lost load threshold, and generate an alert indicative of the lost load occurrence.

Methods and apparatus to identify loads lost from vehicles are disclosed. An example apparatus to identify a load lost from a vehicle includes at least one memory, machine readable instructions, and processor circuitry to at least one of instantiate or execute the machine readable instructions to determine a first load carried by the vehicle at a first time, determine a second load carried by the vehicle at a second time after the first time, identify a lost load occurrence in response to a load difference between the first load and the second load satisfying a lost load threshold, and generate an alert indicative of the lost load occurrence.

Methods and apparatus to identify loads lost from vehicles are disclosed. Example instructions cause programmable circuitry to at least determine a first load carried by a vehicle at a first time based on first signals from at least one of pressure sensors or ride height sensors, determine a second load carried by the vehicle at a second time later than the first time based on second signals from at least one of the pressure sensors or the ride height sensors, cause a lost load alert to be presented to an operator of the vehicle in response to the second load being less than the first load by at least a lost load threshold, and at least one of activate hazard lights or limit an output of an engine of the vehicle in response to the second load being less the first load by at least the lost load threshold.