The APL, an mlpc vehicle which meets the criteria of the NF 98 218-3, ISO 8608 and EN 13036-6:2008 standards, is used for the following applications:
The APL -profilometer- system allows the continuous measure of the longitudinal evenness of road carriageways and aeronautical runways and, more generally, of any lane used by motor vehicles, whatever the structure of the carriageway and the nature of its overlaying.
The measure is based on a survey of the longitudinal profile of the pavement, in one or two traces: the analysis of this profile makes it possible to deduce the evenness characteristics of the pavement surface.
APL 2015 is a longitudinal evenness data processing software package.
Processing of longitudinal evenness data
APL 2015 is a software package for processing data that are collected by a longitudinal evenness condition survey device (APL, MLPL, Unibox). The purchase of this software package is independent of the acquisition of condition survey equipment.
APL 2015, which complies with the 2015 Technical Note and the 2014 Uni Guide, is available under several licenses; they depend on the measurement equipment used:
AprĂšs sciage ou carottage pour des essais tels que module en traction directe ou indirecte, module en traction compression, module complexe, fatigue en flexion 2 et 4 points.
The HWD/FWD is a device for determining the bearing capacity of pavement. It is composed of a falling weight that generates an impulse loading on the pavement surface by means of a rigid plate and a damping system.
The deflections generated are measured by means of geophones placed under and around the plate.
Griptester is a Findlay Irvine vehicle which will be used for the following application:
The measure of a longitudinal force coefficient (LFC) between the overlaying and a tyre based on the principle of a braked wheel with a constant slip rate of about 15%. This slip rate, which generates the skid resistance, is obtained by mechanical drive between the two carrier wheels and the measure wheel.
