Car-to-Infrastructure Communication in the Context of Intelligent Traffic Intersections
Car-to-Infrastructure komunikace v kontextu inteligentních dopravních křižovatek
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České vysoké učení technické v Praze
Czech Technical University in Prague
Czech Technical University in Prague
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Car-to-infrastructure (C2I) je ad-hoc komunikační schéma používané v inteligentních dopravních systémech. Jednou z hlavních aplikací C2I sítí je Green Light Optimal Speed Advisory (GLOSA). Jejím cílem je podporovat plynulost provozu a umožnit řidičům průjezd křižovatkou bez nutnosti zastavení či prudkých změn rychlosti. Hlavním cílem této práce je navrhnout a implementovat vylepšený algoritmus pro výpočet doporučené rychlosti příjezdu ke křižovatce. Algoritmus je následně integrován do mobilní aplikace GreenLight, která implementuje systém GLOSA na straně řidiče. Dalším tématem je analýza bezpečnostních hrozeb - obecných pro GLOSA systémy a konkrétních pro aplikaci GreenLight. Práce také navrhuje několik metod pro určení směru, kterým zamýšlí řidič projet křižovatkou. Toto umožní automaticky vybrat správný semafor pro výpočet doporučené rychlosti.
Car-to-infrastructure (C2I) is an ad-hoc communication scheme used within Inteligent Transportation Systems. Green Light Optimal Speed Advisory (GLOSA) is one of the main C2I applications. It increases an overall traffic flow continuity by helping drivers to avoid unnecessary stops at traffic intersections. Main goal of this thesis is to design and implement an enhanced algorithm for calculating a recommended approaching speed to an intersection. It also describes its integration in GreenLight, a mobile application implementing driver-side part of GLOSA. Furthermore, the thesis identifies common security threats to GLOSA systems and to the GreenLight application. It also proposes several methods for determining direction in which the driver intends to go through an intersection. This will allow for an automatic selection of the proper light signal for which a recommended speed should be calculated.
Car-to-infrastructure (C2I) is an ad-hoc communication scheme used within Inteligent Transportation Systems. Green Light Optimal Speed Advisory (GLOSA) is one of the main C2I applications. It increases an overall traffic flow continuity by helping drivers to avoid unnecessary stops at traffic intersections. Main goal of this thesis is to design and implement an enhanced algorithm for calculating a recommended approaching speed to an intersection. It also describes its integration in GreenLight, a mobile application implementing driver-side part of GLOSA. Furthermore, the thesis identifies common security threats to GLOSA systems and to the GreenLight application. It also proposes several methods for determining direction in which the driver intends to go through an intersection. This will allow for an automatic selection of the proper light signal for which a recommended speed should be calculated.