Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Mountain Railways of India' has mentioned 'Infrastructure' in the following places:
Occurrence Sentence Text Source
The structural integrity has been maintained and the general infrastructure of the lines is today very close to the characteristics of the lines as they originally were.
The property is in a generally good condition with regard to infrastructure, technical operation and social use that enables it to adequately express its values.
The three railways have the technical documents necessary for the maintenance of track, infrastructure, rolling stock and stations.