Bump Integrator Conventional Type
Bump Integrator Conventional Type
Ref. C.R.R.I Design
EKE 9702:
Roads are public utilities built for providing speedy, safe and comfortable ride to the road users. The safety and comfort of the users is adversely affected by poor riding quality of the roads. The riding quality, also termed as unevenness or roughness is an important parameter for evaluation of surface condition of roads. Roughness is the distortion in the road profile, which is of main concern to the road users. It is caused due to the inherent properties of materials and the construction techniques. This further deteriorates through permanent deformation of the layers in the pavement structures.
The roughness of the pavement forms an important input to any Pavement Management System (PMS) in deciding upon the maintenance strategies to be applied on road surface. The riding quality is generally measured by response type instruments, which are either towed or mounted on the vehicle itself.
Bump Integrator also known as Rough meter or Automatic Road Unevenness Recorder gives quantitative integrated evaluation of surface irregularities on an digital counter / LCD screen. It comprises of a single wheeled trailer, with a pneumatic tyre mounted on a Bump Integrator
Chassis, on which an integrating device is fitted. The machine has a panel board fitted with two / four sets of digital counters for accounting the unevenness index value.
Bump Integrator Conventional Type machine as per CRRI design it is supplied with the following specification.
Bump Integrator With Preset Facility
Bump Integrator
EKE 9703:
The user has the option to choose from Direct/Preset mode. Through the direct mode, the user can direct reading of road unevenness index at any point whereas through the preset mode, the user can select the length as per his requirement, ranging from 50 cm to 9999 meters.
The machine has the facility to skip to any obstruction on road, (i.e speed breakers, pot holes etc.) just by pressing the ‘Press button’ to ensure that the reading obtained over a stretch of road is a true reflection of the surface irregularity.
The user can also evaluate the roughness index, in terms of lengths and bumps at preset lengths. The example cited below indicates the cumulative bump over preset length of 100 meters
Length in Meters Bumps in Centimetres
100 000016
100 000015
100 000017
100 000018
100 000018
Road Unevenness Index= Bump in cm, Length in Meter
