Sökning: "transportation network efficiency"

Visar resultat 1 - 5 av 33 avhandlingar innehållade orden transportation network efficiency.

1. 1. Foliated Transportation Networks - Evaluating feasibility and potential

   Författare :Joakim Kalantari; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hybrid transportation systems; transportation network modeling; intelligent transportation systems.; transportation planning and control; transportation network simulation; transportation network optimization; Transportation networks; transportation network performance; mixed model transportation; transportation network efficiency;

   Sammanfattning : Neither the critical role that transportation plays for economic activities nor its negative external effects can be denied. At the same time, the resources required to sustain and develop the transportation system to an adequate degree and at the required pace are limited. LÄS MER

3. 2. Spatial analysis and modeling of urban transportation networks

   Författare :Jingyi Lin; Yifang Ban; Sten Henning Hansen; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Complex networks; transportation systems; network growth; Evolving networks; centrality; urban systems; topology; space syntax; spatial networks; distance effects; gravity laws; planarity; street network patterns; US airline system; China’s aviation system; network efficiency; cellular structure; hierarchy; network representations; Geodesy and Geoinformatics; Geodesi och geoinformatik;

   Sammanfattning : Transport systems in general, and urban transportation systems in particular, are the backbone of a country or a city, therefore play an intrinsic role in the socio-economic development. There have been numerous studies on real transportation systems from multiple fileds, including geography, urban planning, and engineering. LÄS MER

4. 3. Road network and GPS tracking with data processing and quality assessment

   Författare :Xiaoyun Zhao; Johan Håkansson; Kenneth Carling; Bin Jiang; Högskolan Dalarna; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; GPS tracking; Reliability; Road network; visualized map; road network; Map-matching; P-median Model; Network density; Complex Systems – Microdata Analysis; Komplexa system - mikrodataanalys;

   Sammanfattning : GPS technology has been embedded into portable, low-cost electronic devices nowadays to track the movements of mobile objects. This implication has greatly impacted the transportation field by creating a novel and rich source of traffic data on the road network. LÄS MER

5. 4. Optimization and Control in Dynamical Network Systems

   Författare :Håkan Terelius; Karl Henrik Johansson; Alexandre Proutiere; Giacomo Como; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Optimization; Networks; Transportation; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Dynamical network systems are complex interconnected systems useful to describe many real world problems. The advances in information technology has led the current trend towards connecting more and more systems, creating "intelligent" systems, where the intelligence originates in the scale and complexity of the network. LÄS MER

7. 5. The Key to Intelligent Transportation Systems: Identity and Credential Management for Secure and Privacy-Preserving Vehicular Communication Systems

   Författare :Mohammad Khodaei; Panagiotis Papadimitratos; Antonio Lioy; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Security; Privacy; Vehicular PKI; VPKI; Identity and Credential Management; Vehicular Communications; VANETs; Availability; Scalability; Resilient; Efficiency; Micro-service; Container Orchestration; Cloud;  Certificate Revocation List; Location Privacy; Mix-zones; Pseudonymity; Anonymity; Untraceability; Pseudonym Transition; Pseudonym Unlinkability.; Säkerhet; personlig integritet; identitet- och behörighetsuppgifter; tillgänglighet; skalbarhet; motståndskraftig; effektivitet; moln; pseudonymitet; anonymitet; ospårbarhet.; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Vehicular Communication (VC) systems can greatly enhance road safety and transportation efficiency and enable a variety of applications providing traffic efficiency, environmental hazards, road conditions and infotainment. Vehicles are equipped with sensors and radars to sense their surroundings and external environment, as well as with an internal Controller Area Network (CAN) bus. LÄS MER