GENERAL-Kollam Chinnakkada skyway and urban park Topographical and Traffic survey- Investigation Work

OD122466/2026-2027: Providing and fixing RCC pillars for DGPS control points of size 0.3 m x 0.3 m,0.5 m long, 0.1m above ground level and 0.4 m below GL casted in M20 Grade concrete reinforcedwith 4 nosof 8 mm dia longitudinal bars and 6mm dia stirrups @ 0.15m c/c, firmly fixed inposition bymeans of PCC of 0.1m wide and 0.4 m deep around the pillars in M15 grade concretebelow ground level including painting 2 coats on exposed surface with synthetic enamelpaint`

OD122616/2026-2027: Providing and fixing RCC pillars at every 250 m interval along the road, of size 0.15 m x 0.15 m, 0.45 m long, 0.15 m above ground level and 0.3 m below GL casted in M20 Grade concrete reinforced with 4 nos of 8 mm dia longitudinal bars and 6 mm dia stirrups @ 0.15 m c/c, firmly fixed in position by means of PCC of 0.075 m wide and 0.3 m deep around the pillars in M15 grade concrete below ground level including painting 2 coats on exposed surface with synthetic enamel paint

56.12.b:Total station surveying and preparation of site plan - Plain built up area with hindrance to line of sight due to buildings/structures.

OD122795/2026-2027:To carry out DGPS survey to establish primary control points - it includes observation of raw data by using dual constellation GNSS receiver, processing, net work, adjustment and submission of data in WGS 84 datum and UTM/TM projection system including traverse report ( One intervisible pair per 5 Km)

OD122813/2026-2027:To carry out Traverse to establish horizontal control traverse stations on the proposed road stretch running through from one DGPS station at every 2.50 km using electronic total station instrument at maximum of 250 m interval with an accuracy of 1 in 10000 and back to close, which includes submission of hard and soft copies as per IRC standards

OD122874/2026-2027:Fly levelling to shift levels from given Bench mark value to next Bench mark station to horizontal traverse station and available permanent structures all along the road for the elevation purpose by closed circuit which includes submission of the hard and soft copies as per IRC Standards

OD122518/2026-2027:Conducting classified traffic count at one station. Taking traffic count in both directions at selected locations for 3 days 24 hours continiously by recording the classified volume count in the prescribed format attached, including provision for engaging and compiling the data and submitting the same in hard and soft copy etc complete as per the instructions of officials. (For all type of traffic )

OD122585/2026-2027:Conducting classified traffic count at one station. Taking traffic count in One directions at selected locations for 3 days 24 hours continiously by recording the classified volume count in the prescribed format attached, including provision for engaging and compiling the data and submitting the same in hard and soft copy etc complete as per the instructions of officials. (For all type of traffic )

OD123060/2026-2027:Drone survey for both mapping and achitectural visualization.The agency shall provide a high resolution geo-reference Ortho-Mosaic ,DTM,DSM,Contour/Spot-Level data ,and Preferably a CAD base showing road edges ,Junctions,Building foot prints,Trees,Medians and major street elements,along with dense point cloud data in LAS/LAZ format and a Textured 3D mesh in OBJ/FBX format with texture files , suitable for importing into SketchUp or Visualization software.The 3D mesh should be cleaned , Scaled ,Geo-referenced, and also supplied as a lighter SketchUp-friendly segmented model for the 1km stretch . Stable slow-4K drone footage along the proposed alignment , Raw captured photographs ,Co-ordinate system details ,and scale/level accuracy confirmation should also be provided , so that the seperately modelled skywalk can be accurately incorporated into the existing 3D context and video visualization.