Search for dissertations about: "mean speed"

Showing result 1 - 5 of 163 swedish dissertations containing the words mean speed.

  2. 1. The Optimal trigger speed of vehicle activated signs

    Author : Diala Jomaa; Högskolan Dalarna; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; optimal trigger speed; vehicle activated sign; vehicle mean speed; standard deviation; calibration; Doppler radar; driver behaviour; data analysis; Complex Systems – Microdata Analysis; Komplexa system - mikrodataanalys;

    Abstract : The thesis aims to elaborate on the optimum trigger speed for Vehicle Activated Signs (VAS) and to study the effectiveness of VAS trigger speed on drivers’ behaviour. Vehicle activated signs (VAS) are speed warning signs that are activated by individual vehicle when the driver exceeds a speed threshold. READ MORE

  4. 2. In-vehicle speed adaptation - On the effectiveness of a voluntary system

    Author : Magnus Hjälmdahl; Trafik och väg; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Road transport technology; Vägtransportteknik; Traffic safety; In-car observations; Long-term effects; Speed; Driver behaviour; ISA; Active Accelerator Pedal;

    Abstract : The overarching aim of this thesis is to study the long term effects of a voluntary speed adaptation system, the Active Accelerator Pedal (AAP), and its effectiveness for different driver types. The papers making up this thesis are based on a study carried out on 284 vehicles and drivers in the Swedish city of Lund from 1999 until 2002. READ MORE

  5. 3. Speed characteristics of urban streets based on driver behaviour studies and simulation

    Author : Karin F. M. Aronsson; Karl-Lennart Bång; Bengt Holmberg; KTH; []
    Keywords : Speed; Characteristics; Urban area; Road network; Street; Traffic; Driver; Side-friction element; Driving simulator; Simulation; Measurement; Behaviour; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : The objective of the study was to gain in-depth knowledge of speed relationships for urban streets. The speed characteristics were examined using a number of methods for data collection. READ MORE

  6. 4. A data driven approach for automating vehicle activated signs

    Author : Diala Jomaa; Mark Dougherty; Siril Yella; Högskolan Dalarna; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Optimal trigger speed; vehicle activated sign; mean speed; standard deviation; calibration; driver behaviour; data driven approach; automatic model; Complex Systems – Microdata Analysis; Komplexa system - mikrodataanalys;

    Abstract : Vehicle activated signs (VAS) display a warning message when drivers exceed a particular threshold. VAS are often installed on local roads to display a warning message depending on the speed of the approaching vehicles. VAS are usually powered by electricity; however, battery and solar powered VAS are also commonplace. READ MORE

  7. 5. On Physical Relations in Driving: Judgements, Cognition and Perception

    Author : Gabriella Eriksson; Mäntylä Timo; Ola Svenson; Christopher Patten; Wändi Bruine de Bruin; Statens väg- och transportforskningsinstitut; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Driver; Driving veh ; Cognition; Behaviour; Choice; Speed; Fuel consumption; Route itinerary ; Thesis; 841 Road: Road user behaviour; 841 Road: Road user behaviour; Psychology;

    Abstract : Drivers need to make judgements of physical relationships related to driving speed, such as mean speed, risks, travel time and fuel consumption, in order to make optimal choices of vehicle speed. This is also the case for the general public, politicians and other stakeholders who are engaged in traffic issues. READ MORE