What are these guys on the street doing?

Sometimes I see these men in ginger or neon yellow work vests on the corner of streets near this tripod thing. It looks approaching they are measuring something. Today I saw approaching 10 of them. What are they doing?

Lamborghini?



Answers:    Surveying. They use a gps location system to measure slopes, grades, distances for planning. usually for the state, zoning purposes, to expand roads, it's part of the planning process.

Which saloon have these species of guages?


they are surveying. Maybe a current street.

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