Prediction of pavement unevenness using bump integrator
No Thumbnail Available
Date
2020-05
Journal Title
Journal ISSN
Volume Title
Publisher
AIKTC
Abstract
Pavement surface unevenness plays a pivotal role on roughness index of road which affects on
riding comfort ability. Comfort ability refers to the degree of protection offered to vehicle
occupants from uneven elements in the road surface. So, it is preferable to have a lower
roughness index value for a better riding quality of road users. Roughness is generally defined as
an expression of irregularities in the pavement surface which can be measured using different
equipments like Merlin, Bump integrator, Profilometer etc. Among them Bump Integrator is
quite simple and less time consuming in case of long road sections. A case study is conducted on
low volume roads in West District in Tripura to determine roughness index (RI) using Bump
Integrator at the standard speed of 32 km/h. But it becomes too tough to maintain the requisite
standard speed throughout the road section. The speed of Bump Integrator (BI) has to lower or
higher in some distinctive situations. So, it becomes necessary to convert these roughness index
values of other speeds to the standard speed of 32 km/h. This paper highlights on that roughness
index conversional model. Using SPSS (Statistical Package of Social Sciences) software a
generalized equation is derived among the RI value at standard speed of 32 km/h and RI value at
other speed conditions.
Description
Keywords
Project Report - CE