Editing Telemetry (section)

===Transportation===
In the transportation industry, telemetry provides meaningful information about a vehicle or driver's performance by collecting data from sensors within the vehicle. This is undertaken for various reasons ranging from staff compliance monitoring, insurance rating to predictive maintenance.

Telemetry is used to link [[Traffic count#Traffic counter devices|traffic counter devices]] to data recorders to measure traffic flows and vehicle lengths and weights.<ref name="nzta-2004">{{Cite book |url=https://www.nzta.govt.nz/assets/resources/traffic-monitoring-state-hways/docs/traffic-monitoring-state-highways.pdf |title=Traffic Monitoring for State Highways |date=May 2004 |isbn=978-0-478-10549-0 |publication-date=November 2011 |access-date=5 January 2019 |archive-url=https://web.archive.org/web/20190131235155/https://www.nzta.govt.nz/assets/resources/traffic-monitoring-state-hways/docs/traffic-monitoring-state-highways.pdf |archive-date=31 January 2019 |url-status=live |publisher=[[NZTA]] }}</ref>

Telemetry is used by the railway industry for measuring the health of [[trackage]]. This permits optimized and focused predictive and preventative maintenance. Typically this is done with specialized trains, such as the [[New Measurement Train]] used in the United Kingdom by [[Network Rail]], which can check for track defects, such as problems with [[Track gauge|gauge]], and deformations in the rail.<ref>{{cite web |url=https://www.networkrail.co.uk/running-the-railway/looking-after-the-railway/fleet-machines-vehicles/new-measurement-train-nmt/ |title=New Measurement Train (NMT)|website=Networkrail.co.uk |access-date=19 October 2022 |archive-url=https://web.archive.org/web/20190219162702/https://www.networkrail.co.uk/running-the-railway/looking-after-the-railway/fleet-machines-vehicles/new-measurement-train-nmt/ |archive-date=19 February 2019 |url-status=dead}}</ref> Japan uses similar, but quicker trains, nicknamed [[Doctor Yellow]].<ref>{{cite web|url=https://www.jrailpass.com/blog/doctor-yellow-shinkansen|title=Doctor Yellow Shinkansen: The Iconic Test Train|date=November 6, 2020|publisher=JapanRailPass|access-date=December 29, 2022}}</ref> Such trains, besides checking the tracks, can also verify whether or not there are any problems with the [[overhead power supply]] (catenary), where it is installed. Dedicated rail inspection companies, such as [[Sperry Rail Service|Sperry Rail]],<ref>{{cite web | url=https://www.sperryrail.com/contact.php | title=Sperry Rail Service|website=Sperryrail.com}}</ref> have their own customized rail cars and rail-wheel equipped trucks, that use a variety of methods, including lasers, ultrasound, and induction (measuring resulting magnetic fields from running electricity into rails) to find any defects.<ref>{{cite web | url=https://www.sperryrail.com/induction.php | title=Sperry Rail Service|website=Sperryrail.com}}</ref>