EXPERIENCE OF MEASURING ROAD ROUGHNESS USING A SMARTPHONE BASED SYSTEM IN PAPUA NEW GUINEA

摘要

Poverty is usually the effect of development difficulties: employment, environment, ecology,energy, food security, immobility and many more concerns create poverty. Althoughpoverty is increasing in urban areas, it remains predominantly a rural phenomenon. A welldeveloped and properly maintained road network in place can significantly help reducepoverty. Development of road network in developing countries involves big investments;therefore one of the main targets is to preserve the existing road asset. Major problem indeveloping countries is to carry on surveys on a regular basis which often don't meet thefinancial support from governments. An alternative solution has been developed inSweden. The smartphone- based system offers an alternative approach for assessingseveral roads indicators such as IRI and travel speed.According to World Bank classification, it is stated to have class III of accuracy. Thesystem was tested during period of January 2014 - April 2015 in Papua New Guinea.About 1800 km of roads were surveyed during pilot surveys and real projects.There is no sufficient literature available reflecting the concerned approach in road surveys.In order to identify the reliability and the relative accuracy of the device a set of roadsections were inspected and compared to other available measurement systems. ThePaper presents findings and results of relationship between class I profilometer, otherclass III IRI measurement device and smartphone roughness measurement systems aswell as discussion on applicability in case of Papua New Guinea.