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P. 28

INFRASTRUCTURE































          runway operations such as        be dismantled within a short     runway stretch. However, the
          temporary air traffic control,   time following SOPs. No large    runway portion did not have the
          ground lighting equipment and    signages such as gantry-mounted   crash barrier or any permanent
          fire-fighting equipment.         overhead structures were         vehicle restraint system on the
                                           installed for road traffic signages,   outer shoulder side. It was
          ….and mitigations                ATMS cameras and VMS several     acceptable for a relatively short
                                           kilometres before and after the   stretch compared to the full length
           The challenges however, were    runway stretch.                  of the expressway because the
          suitably mitigated and some                                       shoulder embankment height
          solutions include design of the   No traffic signals or blinkers   was kept low and a gentle
          5km stretch being integrated     were installed in the vicinity. It   slope was provided thereby
          with the prevailing Indian codes   is also pertinent to note that no   negating the warrant for a
          for highway and runway facilities   elevated structure such as flyover,   crash barrier. Instead, runway
          for the dual facility. Advance   road over bridge or vehicle      pavement markings such as the
          road signs were posted several   overpass was constructed as well.   runway centre line and runway
          kilometres ahead of the airstrip   Regular pavement markings such   holding position marking were
          having mandatory requirements    as edge line, lane lines, pavement   implemented on pavement using
          and information guidance to pass   arrow markings and transverse   water-based paint, which distinctly
          the vehicles through the runway   markings were not installed on   differed from adjacent expressway
          portion of the expressway.       the runway stretch. Additional   markings as described above.
          Signages also depicted the       delineation by way of installing
          steps to be taken during halt of   raised pavement markers or studs   This change in environment,
          expressway operations.           that are generally placed along   clearly evident from the stark
                                           edge lines and oftentimes on     contrast in permanent traffic
           Since standard signs for        lane lines also were absent on   control and safety device types,
          roadway/runway dual facilities   the runway portion. Customized   provision and placement played
          are not available, available     detachable median with wheels    a crucial role in the overall
          sign graphics were modified      provided for highway operations,   project’s operations and safety
          by adding Hindi text to                                           aspect because eventually, the
          increase readability and reach   which would be stowed away       5-kilometre-long designated
          of local users since during      during airstrip operations.      runway stretch did not have any
          emergency operations. Traffic     The outer shoulder sides of both   lane delineation that is expected
          sign foundations were not        sides of the expressway main     by road users during peace time
          conventional type for this       carriageway had metal beam       road operations. That meant
          stretch. Frangible or break-away   crash barrier installed, including   lowering of posted speed limit to
          poles were used that could       immediately before and after the   maintain safety.


     28   TRAFFICINFRATECH / June 2025 / www.trafficinfratech.com
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