Sökning: "gravel roads"

Visar resultat 1 - 5 av 16 avhandlingar innehållade orden gravel roads.

  1. 1. Dust suppressants for Nordic gravel roads

    Författare :Karin Oscarsson; Ulf Isacsson; Sven Knutsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gravel roads; dust suppressants; objective methods; residual concentrations; dust generating device; Building engineering; Byggnadsteknik;

    Sammanfattning : This licentiate thesis is part of a Ph.D. project entitled “CDU:T43 Different methods for dust control and evaluating dust control on Nordic gravel roads”. The Ph. LÄS MER

  3. 2. Dust suppressants for Nordic gravel roads

    Författare :Karin Oscarsson; Högskolan Dalarna; []
    Nyckelord :Gravel roads; dust suppressants; objective methods; residual concentrations; dust generating device.;

    Sammanfattning : .... LÄS MER

  4. 3. Automated Gravel Road Condition Assessment : A Case Study of Assessing Loose Gravel using Audio Data

    Författare :Nausheen Saeed; Moudud Alam; Roger G. Nyberg; Diala Jomaa; Mirka Kans; Högskolan Dalarna; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Gravel roads; road maintenance; convolutional neural network CNN ; SVM; decision trees; ensemble bagged trees; GoogLeNet; ResNet50; ResNet18; sound analysis;

    Sammanfattning : Gravel roads connect sparse populations and provide highways for agriculture and the transport of forest goods. Gravel roads are an economical choice where traffic volume is low. In Sweden, 21% of all public roads are state-owned gravel roads, covering over 20,200 km. LÄS MER

  5. 4. On rating of gravel roads

    Författare :Hossein Alzubaidi; KTH; []
    Nyckelord :Condition; classification; condition estimation; corrugations; deterioration; dust; frost damage; grading; gravel road; maintenance; objective measurement; potholes; rating; roughness; ruts; side drainage; subjective rating; surface drainage;

    Sammanfattning : .... LÄS MER

  7. 5. Evaluation of Dust Suppressants for Gravel Roads : Methods Development and Efficiency Studies

    Författare :Karin Edvardsson; Björn Birgisson; Andrew Dawson; KTH; []
    Nyckelord :Gravel road; dust; particulate matter; PM10; horizontal dust diffusion; deteriorations; maintenance; dust control; dust suppressants; efficiency; application rate; leaching; residual concentration; seasonal variations; salt solution; solid salt; calcium chloride; magnesium chloride; lignosulphonate; polysaccharide sugar ; bitumen emulsion; rape oil; starch; surfactant; mesa; clay; fine material content;

    Sammanfattning : Approximately 75 percent (300 000 km) of the total Swedish road network and 20 percent(20 000 km) of the national road network consists of gravel roads. One of the most significantproblems associated with gravel roads is traffic-generated dust emission, which contributes tothe deterioration of the road surface and acts as a major source of particulate matter releasedinto the atmosphere, thereby involving public economics, road safety, human health, andenvironmental quality. LÄS MER