IRI-International roughness index
Figure 1. Appearance and size of MMS vehicle.
Table 1. Specification of Mobile Mapping System
Figure 3. Viewer Application for trajectory, laser point cloud and photo recorded by MMS.
Figure 4. images for analysis of cracks
Figure 5. point cloud for analysis of evenness of pavement
Figure 6. Robot
photo image for good or bad condition of pavements
Point Cloud image for pavement
Abstract (limited 250 words)
Mobile Mapping Systems (MMS) have drawn more attention from road management and maintenance in Japan. Recently, MMS have been allowed to use in public survey, which means surveys executed either by the national or local governments, in Japan. Therefore, the usage of MMS is expected as alternatives to conventional survey techniques. An MMS consists of a vehicle-mounted GPS (Global positioning systems) antenna, laser scanners, cameras and other equipment, enabling the efficient acquisition of highly accurate 3D positional information on road space such as buildings, road contours, road signs, guardrails, road lettering, manholes, utility poles/lines and other peripheral data along the road while driving. In road space, it is important and essential to keep road pavement in good condition without surface distresses such as cracks, patches and so on. Human inspection is still widely used to find these distresses for road management, but manual surveys are very time-consuming and less effective. Therefore, successful automation of surface distress surveys will reduce the overall cost of finding distresses and provide more objective and standardized results for road management. In this paper, we try to authorize methods to detect cracks in asphalt pavement using MMS. From the early 1970s, researchers started to use digital imaging technology to develop automated pavement surface distress inspection systems for pavement distress surveys. However, these conventional systems couldn’t provide highly accuracy positions of cracks in pavements. Finally the development of laser technology together with the improvement in the performance of GNSS (Global Navigation Satellite Systems) /INS (Inertial Navigation Systems) for direct georeferencing has broadened the range of applications of MMS and possibilities to detect cracks in road pavement with accurate positioning. Accordingly, as feasibility evaluation, this research reports the results of evaluating cracks in asphalt pavement using spatial data acquired from laser scanners and cameras of an MMS.
Mobile Mapping Systems has a potentials of changing the method of conventional practical surveying.
In Japan, recently, more accurately Mobile Mapping Systems were developed and aggressive of utilization
Mobile Mapping Systems has been used since United States of America and Europe.
Road Pavement monitoring and maintenance is
In Japan, research and development of monitoring road surface conditions by vehicle has been mainly started in 1980s (Refs).
In a survey on the road surface condition in Japan, width of crack in Asphalt Pavement, more than 1 mm, and ratio of cracks in Asphalt Pavement. The definition of cracks such as aligator, alignment , pothole and patting.
monitoring road surface conditions
路面性状３要素（ひび割れ，わだち掘れ，平坦性）:cracking, rutting and evenness
The cracking on conventional pavement is still one of major damages.
The utility of MMS is higher than a road surface measurements car.
Purpose: This study aims to
photo, lidar, normal vectors, using PCL resources
Good condition of pavement, Bad condition of pavement
easy way to survey the condition of pavements
R&D OF MOBILE LIDAR MAPPING AND FUTURE TRENDS (ASPRS Conference, 2009)
samples by ASPRS
路面性状測定車による乗り心地評価の精度検証 in Japanese
Figures & Tables
路面性状測定車 : a road surface measurement car ←this is referenced from here.
Road Surface Measuring Vehicle←this is referenced from here.
路面性状調査 : A survey on the road surface conditions ←this is referenced from here.
路面性状調査要領（案) : The Draft Standard Procedure for pavement condition survey
PAVEMENT CONDITION SURVEY MANUAL (NEBRASKA DEPARTMENT ROADS)
PAVEMENT CONDITION SURVEY MANUAL (NORTH CAROLINA DEPARTMENT OF TRANSPORTATION)
ASPRS author instruction