*3.4.1 Direct benefit*

#### *3.4.1.1 Initial cost of the new control system*

Considering the cost of; camera (approximate number), day/night sensor, motion sensor, controller (simplest version) [31], signal transmission between zones by RS-485 network [32], and installation [10] (lamp, manpower, crane, dumping etc. … ), **Table 6** can be obtained. The table illustrates that approximately \$26,662.88 is needed to provide the proposed automation lighting system for 4 km.

#### *3.4.1.2 Energy saving*

**Table 7** illustrates the comparison of energy consumption between using the proposed automation lighting system versus conventional system which operates all night, considering that both systems utilize LED fixtures with 75-Watt as minimum consumption for the conventional system. The table shows reduction in the power consumption of 86.31%. This reduces drastically the electrical fault probability in the lighting electrical circuits [33, 34].


**Table 6.** *Initial investment.*
