A transportation system may include fixed infrastructure like existing roads, rails, terminals etc.; facilitating movement of traffic between two or more points are fixed facilities in the system. Points located on these movement channel segments characterizing either the beginning or end of a road segment or the beginning or end of travel also constitute the fixed elements of the transportation system. eg; intersections, interchanges, parking lots, bus stops, transit, terminals etc.

The purpose of the Road Network inventory study is to analyze the performance of the present and future road transport system. It is prudent to develop the network of roads of the present as well as the future. In this connection information relating to the existing road network in the area, owned and maintained by different depart menus consisting expressways, national highways, state highways, major district roads, and rural roads is collected in the study area.

RSM conducts the inventory of the road networks, the network is designated in terms of links and nodes. Nodes are the confluence of links (intersections) and links are the road segment joining two nodes (intersections). For processing the data attributes, links and nodes are identified by unique numbers. The inventory would primarily cover the recording of geometries of the roadside features that influence the performance of the link.

A Road Measurer and conventional measuring tapes are used for carrying out the measurements. Road measure is a rapid, convenient and accurate means for measuring carriageway, footpath and shoulder width and distances. Road Measurer consists of a measuring wheel, counter and collapsible handle shaft. With the help of road measurer, the survey team could record dimensions of all the geometric features of the road link by walking.

Thus the information recorded in the inventory of the road network includes the following:

* Name of the Road
* Link ID
* Link Length in km
* Right of way Width
* Median widths and construction material used
* Carriageway width and type of pavement
* Widths of footpaths, shoulder and service roads
* Roadside drainage
* Abutting land use (broadly)
* Number of Median Openings, Minor roads joining Main Road and Roadside property direct access entry/exit
* Length of encroachment
* Details such as no. of bus stops, the presence of on-street parking, plantation etc
* Presence of road markings
* Street lighting type and location
* Details whether the link is bus/tempo route and traffic management