Abstract
In this paper, we describe AL-S2m, a roadmap with traffic signs to be used in vehicular systems. AL-S2m is part of a more general system of traffic signs (TSs) management, called AL-S2, which includes two sides: central map server and client vehicular system. The server allows establishing, maintaining and disseminating AL-S2m. The client localizes the vehicle in AL-S2m and detects TSs. In this paper, we focus on the AL-S2m establishment. AL-S2m can handle variable TSs and its update is easy, which keeps it coherent with the reality. Also, it improves the map-matching algorithm. We implemented AL-S2m easily using an Android device.
Highlights
AND MOTIVATIONAdvanced Driver Assistance Systems (ADAS) have the capacity to increase driver safety by observing the driver and its environment and providing information, warnings, or even taking actions
A hard traffic sign (HTS) has an image Im, it is fixed on a specific place with coordinates on a given road R, and its effect starts from some straight segment that passes by hard (material) traffic sign (HTS) coordinates
We described and discussed AL-S2m, a specific roadmap
Summary
Advanced Driver Assistance Systems (ADAS) have the capacity to increase driver safety by observing the driver and its environment and providing information, warnings, or even taking actions. Several important works tried to make vehicular systems aware of TSs. The well known of such works are those based on TSs detection and recognition (DRS) (see [8] for instance) using a camera onboard of the vehicle. With the static nature of current roadmaps where their design aims updating them for long periods, they cannot satisfactorily handle temporary and variable TSs. Given the previous weaknesses, a map-based solution can be more significant. Broadcasting such information is not problematic with current generations of communication systems Broadcasting such operations allows handling temporary TSs. The remainder of the paper describes AL-S2m representation (virtualizing roads and TSs). It consist of TSs representation (including the variable TSs), their insertion in AL-S2m, and their detection during the vehicle movement.
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