How to Use Remote Sensing Techniques in Road Construction
There are many types of remote sensing technologies and many applications in not only road construction, but permanent traffic management systems. A key challenge to road construction is keeping a road functional as it's being repaired or reconstructed. A part of this challenge involves remote sensing systems that tell signal crews if a single lane is clear to alternate traffic.
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Instructions
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Identify the section of road and lane that will remain functional as adjacent areas will be rendered unusable during road work.
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Cordon off the work area with pylons.
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Setup traffic counters at each end of the section of road to be used for alternating two-way traffic. The counters must be at the very end, located very near the position of road sign workers who will stop and start traffic.
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Locate workers at each end of the two-way section of road. Some systems will allow output devices to communicate traffic counts to each worker and others may only transmit data to one worker. Either way works. Workers should be in contact by two-way radio.
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The counter must be reset prior to each switch of traffic.
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When preparing for a new interval of traffic, going the opposite direction, the worker must stop traffic at the entrance of the construction zone and transmit the traffic count to the worker on the other end. Only after the same number of cars that have passed into the construction have exited the area can the traffic be changed. This system is more reliable than simply identifying the last car in a line, as passing or stopping and restarting could miss a car, pitting two oncoming cars against one another.
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Tips & Warnings
This system is especially valuable when workers do not have the entire work area within their line of vision and the sections of road have corners with obstructed views.
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