Sensys Stud Trial - Sensys Networks

Sensys Stud Trial
6.2 Cost Comparison Lifetime of Detectors
Due to resealing and general determination of carriageways it is estimated that during the 10
year lifetime of a Sensys stud the loops will have to be replaced once. This means that the cost
of loops can be doubled for the same period of time. Therefore the 10 year lifetime costs can be
estimated to be.
3 Lanes
Sensys $7,450.02
Loops $16,180.00
4 Lanes
Sensys $9,933.36
Loops $10,900.00
3 Lanes, 2 Sites
Sensys $14,900.04
Loops $19,480.00
3 Lanes, 4 Sites
Sensys $19,866.72
Loops $21,800.00
It should be noted that these costs do not take into account the downtime and inconvenience for
the time that the loops are milled out. As loops cannot be recut the same night as sealing,
typically the loops are down for between 2 to 4 weeks depending on the sealing and line
marking programme.
As the studs send information about their battery life, they will indicate when the battery is
getting to a low level and therefore a planned replacement schedule can be arranged. This will
result in minimal downtime.
Summary
Once the full 10 year lifecycle costs are taken into account, the studs also become a cheaper
option than loops in all situations. It may be that not all loops are required to be replaced in the
10 year cycle, however the pricing on average will be comparable.
Commercial in Confidence Page 25