Mushule, Nurdin K.2016-09-072016-09-072005Mushule, N.K.M., 2005. Sustainability of road roughness measurements in countries with low income economies. Botswana Journal of Technology, 14(2), pp.14-20.http://hdl.handle.net/20.500.11810/3657Full text can be accessed at http://www.ajol.info/index.php/bjt/article/view/15397A research project was carried out to establish a sustainable procedure for road roughness measurement applicable in developing countries. Out of many devices in use today, a vehicle mounted bump integrator (VMBI) was selected for the reasons that: a) the equipment is available in most developing countries and it has been in use for sometime; b) the rate and accuracy of measurement is adequate; and c) it is easy to use. However, it was found that it is very difficult, time consuming and hence not sustainable to use a bump integrator for very rough unpaved roads. Consequently, a procedure which relates travel tim e (at comfortable travel speed) and road surface roughness was established. The results show that, if this procedure is properly followed, the roughness obtained are in a very close agreement with those obtained from using the bump integrator.enSustainabilityRoad roughnessDeveloping countriesBump integratorRide qualityJournal Article, Peer Reviewed