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Compiling several links relative to GPS, drone & LiDAR relating to levels of accuracy:
https://www.dronedeploy.com/blog/drone-surveying-101-from-gsd-to-point-clouds
https://pro.arcgis.com/en/pro-app/latest/help/data/imagery/adjustment-report.htm
https://blog.dronedesk.io/surveying-with-drones/
How Drone Data Processing Reports Help Surveying Professionals Build Trust
Your guide to the LIDAR drone landscape: finding the perfect fit
LIDAR vs. photogrammetry : what sensor to choose for a given application
Quick post & reference to some product data that we used at CP’s yard in Bensenville to mitigate some rough undercut conditions. We used Mirafi RS580i Geotextile Fabric – Providing a link to a couple of websites with PDF’s of their product data
Adding an ForConstructionPros article on porous pavement basics:
Trenchless Technologies issued a Special Report – Very useful comparisons of various pipe types & specs
GNSS – Global Navigation Satellite System
Nice article that explains PDOP (Position Dilution of Precision), HDOP & VDOP
I need to build a set of links to bridge framing, decking & scaffolding links.
I’ll start with this one: A link for Swing-Lo’s website – They have systems for working over & on parapets (inspection, maintenance, concrete repairs)
https://swing-lo.com/parapet
They have a downloadable catalog with numerous optionsExcellent link for Touch-up & Repair of Hot-Dip Galvanized materials – There’s a whole playlist/series of videos here
Links to Gregory Industries TTMA-200 truck-mounted impact attenuator
Another resource that I need to dive into:
Links to several on-line trade journals in the trenchless space:
I’m also adding a link to Benjamin Media – Looks like their portfolio has several underground & construction based publications
Encountered an issue with cross-bolts on temporary concrete barrier becoming seized due to exposure & salt spray. Good article on bolt lubricants & anti-seize:
Oftentimes, I find myself searching for IDOT’s dead end paving joint detail, I can never seem to readily find it: It’s BD53. Here’s a link to the District 1 Standards Index of Sheets:
https://apps.dot.illinois.gov/eplan/desenv/standards/District%201/D1DistrictStandards/PDFs/index_22X34.pdfThin polymer overlays for bridge decks – This is a nice step-by-step article on the process & installation:
https://www.kwikbondpolymers.com/polymer-overlay-types-101/
Excellent seminars!!
A bridge drain maintenance issue is often-times dissimilar movement between the deck and the abutment, drains get ripped. These are interesting movable pipe joints that I’ve not seen used….
EBAA Iron Flexible Pipe Joints
https://championfiberglass.com/products/champion-bridge-drain/
Slope monitoring – Inclinometer references
https://www.soilinstruments.com/products/inclination/inclined-digital-inclinometer-system/
https://www.geotech.hr/en/landslide-monitoring-measuring-inclinometer/
