Question

what satellite remote sensors can be used for the construction of a transportation hub (rail and road transport infrastructure)?

Answer 1

Ans) The Sub-Metre space Borne remote sensing is used for the construction of a transportation hub (rail and road transport infrastructure). These remote sensing technology not only provides better spatial resolution but also better spectral and temporal resolutions. Sub metre spatial resolutions are also known as Very High Resolution Images help us to visualize detailed geospatial informations and relations.

Based on combination of better temporal resolutions, Space Borne remote sensing also help us to visualize the view of spatio-temporal changes of earth surface for not only general land cover and land use class but also detailed attributes at each geographical locations.It is feasible to employ these Sub Metre VHR images to monitor Highway or Railway Construction activities.

For Example- Fig 1 & Fig 2 shows the synoptic view of VHR Images of Construction activities.

Example Fig. shows the Synoptic view of VHR Satellite images and ground photos of four mapping construction Stage.

Example Fig. shows the time series Satellite Image presenting the Construction progress.