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© Rinton Press ROAD TALK: A ROADSIDE LOCATION-DEPENDENT AUDIO MESSAGE (2005)
BibTeX
@MISC{For05©rinton,
author = {System For and Car Drivers and Mattias Östergren},
title = {© Rinton Press ROAD TALK: A ROADSIDE LOCATION-DEPENDENT AUDIO MESSAGE},
year = {2005}
}
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Abstract
Abstract. We present the Road Talk application which is a mobile message system for car drivers. It is designed to allow messaging while driving, for instance, sending notes to surrounding drivers to tell them about hazards. The user annotates the road with audio recordings, typically voice memos. This annotation is location-based, which means that messages are automatically coupled to the location where the audio was recorded. When another driver coincides with this location the audio file is automatically played. In the background, messages are also shared with fellow car drivers. This distribution draws on wireless mobile ad hoc networking (MANET) and the physical movement of vehicles. We designed messages to spread ‘epidemically’, since MANETs between vehicles are often disconnected. Messages hop from one car to the other when there is coverage and then passively travel some physical distance. Then they hop again when coverage reappears. The design of Road Talk is motivated and informed by a statistical analysis of commercially available systems for distributing warnings of speed trap events. These events occur where police monitors conformance to speed limits and although our intention is not to improve these services the analysis gave insights in, for example, temporal and spatial occurrences of roadside location-dependent messages. Key words: roadside location-dependent, mobile message system, epidemic distribution 1
Keyphrases
roadside location-dependent audio message rinton press road talk mobile message system available system epidemic distribution spatial occurrence statistical analysis audio recording fellow car driver speed trap event roadside location-dependent message audio file road talk application coverage reappears physical movement car driver physical distance key word police monitor conformance road talk wireless mobile ad hoc networking voice memo
