The contractor personnel performs the corrective and preventive maintenances our of pathways of railway. It requires using a portable device they can capture the information of the work to perform, execute these jobs. They may also perform work not programed and the all facts record in the portable device. Everything is defined in the attachment.
Any questions should be platneada to :
Name: Francisco Arriagada U.
Position: Systems Analyst.
Company: Railway Antofagasta Bolivia.