NCRTC uses CORS technology for accurate alignment of rapid rail
The Linear Railway infra projects require high accuracy surveys to get designed track alignment. Because of the 180 kmph design speed on the structure e.i, elevated viaducts or underground tunnels, there is no scope for fault in the construction of RRTS structures and tracks. The NCRTC is using Continuously Operating Reference Station (CORS) technology to ensure accurate civil structure alignment in the construction of the Delhi-Ghaziabad-Meerut RRTS Corridor. CORS is a global positioning system (GPS) based technology mainly used in surveys, mapping, and allied services. The technique ensures complete accuracy in the construction of a predetermined corridor in civil construction so that the planned alignment can be achieved. Delhi-Ghaziabad-Meerut is an 82 km long corridor going over rivers, railway lines, roads, expressways, and flyovers. Hence it is crucial to maintain accuracy in civil structure alignment. Given this, the NCRTC did not use the traditional technologies but adopted an ultra-modern survey technique, CORS, which is being used for the first time in India in any mega infrastructure project. CORS is a network of reference stations that are established at every 10-15 km along with the Delhi-Ghaziabad-Meerut RRTS corridor. These CORS reference stations are connected to the Control Center, which provides real-time data to the rovers collected from 3-5 reference stations. The entire process of data collection enables the rovers to achieve accuracy of up to 10 mm and also, given the limited timeframe for the implementation of the country's first RRTS project, the construction work is in progress at multiple sites simultaneously.
📅Published on:
30 April 2021
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