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(Automatic translation)

Posts relief networks (SOS)

Irazábal Francisco Ampuero

ABSTRACT
Currently, the DGT has a network of SOS posts almost 7000 posts installed on roads in Spain and served from Central SOS installed in the Provincial Traffic.

These posts provide a service for help and information to road users has not diminished in the number of calls, an average of close to 90000 per year, even after the massive use of mobile phones by drivers. The posts often are used as points of information more than as points of demand of aid.

The technologies used by network components of poles, especially in communications, have evolved from the use of the box at the beginning to the use of fiber optic broadband networks (SDH) used today. With current posts the operator of a SOS Central even can see images of the road, as the SOS poles allow the installation of cameras.

KEYWORDS
Networks aid posts, statistics of calls, Components of a post, communications and Central Technology of call.

Spanish Road Association
Goya, 23 - 4º Right.
28001 - MADRID (Spain)
Tel .: (34) 91 5779972
Fax: (34) 91 5766522
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