Sökning: "traffic environment"

Visar resultat 1 - 5 av 296 avhandlingar innehållade orden traffic environment.

  1. 1. Road traffic metals : sources and emissions

    Författare :David Hjortenkrans; Bo Bergbäck; Per-Arne Malmqvist; Högskolan i Kalmar; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Emission patterns; Heavy metals; Roadside soil; Sweden; Traffic; Sequential extractions; SFA; Environmental chemistry; Miljökemi; Environmental Chemistry; Miljökemi;

    Sammanfattning : As the environmental regulations and technical progress have forced the factories’ old “end of pipe” solutions to improve, the metal emissions from point sources have decreased. Instead, the diffuse consumption emissions from goods in use now are in focus. LÄS MER

  2. 2. Trafikslag på undantag : Cykeltrafiken i Stockholm 1930-1980

    Författare :Martin Emanuel; Arne Kaijser; Mikael Hård; KTH; []
    Nyckelord :HUMANIORA; HUMANITIES; bicycle traffic; bicycle planning; city traffic regime; Copenhagen; Denmark; history; history of technology; ideology; materialised interpretation; representation; Stockholm; Sweden; traffic engineering; traffic planning; traffic policy; 20th century; urban history; urban planning; 1900-talet; cykeltrafik; cykelplanering; Danmark; ideologi; Köpenhamn; materialiserad tolkning; representation; stadshistoria; stadsplanering; stadstrafikregim; Stockholm; Sverige; teknikhistoria; trafikteknik; trafikplanering; trafikpolitik;

    Sammanfattning : The modal share of bicycle traffic in Stockholm increased from 20 per cent to over 30 per cent during the 1930s, and reached staggering levels during World War Two – peaking at over 70 per cent. Soon after the war, however, the share declined rapidly. LÄS MER

  3. 3. Evaluation of bus priority strategiesin coordinated traffic signal systems

    Författare :Johan Wahlstedt; Karl-Lennart Bång; Haris Koutsopoulos; Lars-Göran Mattsson; Kosonen Iisakki; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bus priority; public transport priority; transit priority; PTSP; TSP; traffic signal; traffic signal control; traffic signal control systems; self-optimising signal control; PRIBUSS; SIL simulation; traffic simulation; Transportvetenskap; Transport Science;

    Sammanfattning : Increasing congestion and environmental concerns have evoked an interest in promoting urban Public Transport (PT) the last decades. In 2012 the City of Stockholm adopted an “Urban mobility strategy” stating that public transport, cycling and walking should be prioritised over cars in central Stockholm. LÄS MER

  4. 4. Moral responsibility and the ethics of traffic safety

    Författare :Jessica Nihlén Fahlquist; John Cantwell; Tuija Takala; KTH; []
    Nyckelord :HUMANIORA; HUMANITIES; moral responsibility; ethics; traffic safety; public health; environment; Philosophy subjects; Filosofiämnen;

    Sammanfattning : The general aim of this thesis is to present and analyse traffic safety from an ethical perspective and to explore some conceptual and normative aspects of moral responsibility. Paper I presents eight ethical problem areas that should be further analysed in relation to traffic safety. LÄS MER

  5. 5. Aerosol Measurements as Applied for Exposure Characterization

    Författare :Andreas Dahl; Ergonomi och aerosolteknologi; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; railroad; indoor air; environment; occupational health; exposure; isocyanate; airborne particles; station; traffic;

    Sammanfattning : It is important to decrease the burden of disease. This is in part achieved by decreasing risks. The aim of this thesis is to provide a methodology for the characterization of aerosol exposure, which may lead to negative health effects. LÄS MER