THE USE OF REMOTE SENSING AND GIS IN MAPPING TRANSPORTATION NETWORK IN LOKOJA, KOGI STATE
Keywords:ArcGIS 9.3, Map, up-to-date spatial database of Road Network in Lokoja Kogi State, Remote Sensing and Geographic Information System (GIS) approach
This study focused on creating an up-to-date spatial database of Road Network in Lokoja Kogi State using Remote Sensing and Geographic Information System (GIS) approach. The GIS and remote sensing capability of displaying
graphics, while linking features to attribute tables has become a valuable tool for maintaining and updating roadway network files. This study will help travellers and commuters on their choice of route. A satellite imagery covering the study area was acquired to serve a base map, layers were created in ArcCatalogue of ArcGIS 9.3 software. The imagery was georeferenced and thereafter digitized in ArcMap of ArcGIS 9.3 software. An up-to-date spatial
database of Road Network in Lokoja with the soft and hard copy map of Lokoja showing the road network were created at the end of the study. The transportation pattern in some selected major roads was also studied. It is
observed that some of the major roads are not sufficiently linked to other roads hence the resultant traffic congestion. It is therefore recommended that more links be provided on some major roads to ease traffic flow around the area.