Search for dissertations about: "Passenger comfort"

Showing result 1 - 5 of 34 swedish dissertations containing the words Passenger comfort.

  2. 1. How Does it Feel and How is it measured? Assessing Sitting Comfort and Postures of Rear-Seated Car Passengers in Stationary and Driven Scenarios Over Time

    Author : Melina Makris; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; sitting posture; sitting comfort; driving study; stationary study; seat belt fit; car comfort; car passenger; mixed-methods; seat belt comfort;

    Abstract : This licentiate thesis presents the results of an empirical study focused on examining the comparative effectiveness of short stationary studies versus long driving studies in evaluating sitting postures, belt fit, and sitting comfort in cars. The study employed a mixed-methods approach, in which 19 participants experienced two different test scenarios in the rear seat of a car: a stationary scenario within an indoor garage and a driven scenario on a predefined route in regular traffic, each lasting 45 minutes. READ MORE

  4. 2. Difficulties to Read and Write Under Lateral Vibration Exposure : Contextual Studies Of Train Passengers Ride Comfort

    Author : Jerker Sundström; Shafiquzzaman Khan; Neil J. Mansfield; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lateral vibrations; passenger activities; reading; writing; sitting posture; frequency weighting; rated difficulty; field study; laboratory study; transient vibrations; stationary vibrations.; Vehicle engineering; Farkostteknik;

    Abstract : Many people use the train both as a daily means of transport as well as a working place to carry out activities such as reading or writing. There are, however, several important factors in this environment that will hamper good performance of such activities. READ MORE

  5. 3. Optimisation of horizontal alignments for railways - Procedures involving evaluation of dynamic vehicle response

    Author : Björn Kufver; KTH; []
    Keywords : Railway; track geometry; alignment; cant; climbing ratios; clothoids; guiding forces; passenger comfort; Pct; superelevation ramps; simulation; track shift forces; track vehicle interaction; transition curves; vehicle dynamics; wheel rail forces;

    Abstract : This doctoral thesis summarises and deepens eightpublications on a project concerning railway alignments.The thesis presents an approach to definingequally costlyalignment alternatives. READ MORE

  6. 4. Reliability-Based Assessment and Optimization of High-Speed Railway Bridges

    Author : Reza Allahvirdizadeh; Raid Karoumi; Andréas Andersson; Daniel Straub; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High-speed railway bridges; Bridge dynamics; Running safety; Passenger comfort; Structural reliability; Meta-models; Surrogate models; Adaptive sampling; Reliability-based design optimization; Höghastighetsjärnvägsbroar; Brodynamik; Trafiksäkerhet; Passagerarkomfort; Konstruktioners tillförlitlighet; Metamodeller; Surrogatmodeller; Adaptiv sampling; Tillförlitlighetsbaserad designoptimering; Structural Engineering and Bridges; Bro- och stålbyggnad;

    Abstract : Increasing the operational speed of trains has attracted a lot of interest in the last decades and has brought new challenges, especially in terms of infrastructure design methodology, as it may induce excessive vibrations. Such demands can damage bridges, which in turn increases maintenance costs, endangers the safety of passing trains and disrupts passenger comfort. READ MORE

  7. 5. Evaluation of passenger train concepts : Methods and results of measuring travellers' preferences in relation to cost

    Author : Karl Kottenhoff; KTH; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Politicians would like the railways to help to solve futuretransport and environmental problems. People can travel to andfrom work and on business during the day on modern trains whichare faster than any other alternative on journeys ofintermediate length. READ MORE