The HDM-4 aids in estimating the deterioration of pavement as well intricate interactions between environment, vehicles, surface, and structure pavement. It predicts how roads will deteriorate over time due to increased traffic. current study was carried out at Hyderabad, particularly which are subjected heavy adopted for Dhulapally Bahadurpally (DB), Gandimaisamma Bowrampet (GB), Medchal (GM),...

Abstract Climate attributes such as precipitation, extreme temperature, and freeze-thaw cycles along with traffic loads cause pavement distresses. The maintenance need for pavements is decided based on the condition rating International Roughness Index (IRI). Generally, an IRI less than 2.68 m/km acceptable, a greater considered unacceptable classified “very poor” of pavement. It imperative to ...

This scientific article presents an analysis of the norms roughness road pavement in foreign countries. Based on results obtained from experimental research work measuring international index (IRI) pavements many years various highways by studying their experience, Republic Uzbekistan are recommended.

The international roughness index (IRI) for evaluating pavement surface roughness is simulated using the power spectral density (PSD) of pavement surface fluctuation. Quarter-car models recommended by the World Bank for measuring pavement roughness are adopted to simulate vehicle response. Surface roughness in time domain is generated based on 36 known PSDs of roughness. Newmark sequential inte...

The synchronization index model of sensory dissonance and roughness accounts for the degree of phase-locking to a particular frequency that is present in the neural patterns. Sensory dissonance (roughness) is defined as the energy of the relevant beating frequencies in the auditory channels with respect to the total energy. The model takes rate-code patterns at the level of the auditory nerve a...

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 irreg...

This study aims to evaluate the impact of pavement physical characteristics on the frequency of single-vehicle run-off-road (ROR) crashes in two-lane separated rural highways. In order to achieve this goal and to introduce the most accurate crash prediction model (CPM), authors have tried to develop generalized linear models, including the Poisson regression (PR), negative binomial regression (...