Sökning: "road maintenance"

Visar resultat 6 - 10 av 125 avhandlingar innehållade orden road maintenance.

1. 6. Life Cycle Costing in Road Planning and Management : A Case Study on Collision-free Roads

   Författare :Jonas Wennström; Håkan Sundquist; Tommy Edeskär; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; collision-free road; design; infrastructure; investment; life cycle costing; life cycle cost analysis; maintenance; management; operation; planning; road; sustainability;

   Sammanfattning : Construction of infrastructure does not only mean large capital investments but also future costs to operate and maintain these assets. Decision making in planning and design of roads will impact the need of future operation and maintenance activities. LÄS MER

3. 7. Measurements for winter road maintenance

   Författare :Mats Riehm; Per-Erik Jansson; Eros Pasero; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; winter road maintenance; sensors; infrared thermometry; energy efficiency; road salt;

   Sammanfattning : Winter road maintenance activities are crucial for maintaining the accessibility and traffic safety of the road network at northerly latitudes during winter. Common winter road maintenance activities include snow ploughing and the use of anti-icing agents (e.g. road salt, NaCl). LÄS MER

4. 8. Energy Efficiency in Winter Road Maintenance - A Road Climatological Perspective

   Författare :Lina Nordin; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Road climate; RWIS; frost; snow; fuel consumption; heavy-duty vehicles; route optimisation programme; energy efficiency; winter road maintenance;

   Sammanfattning : Practices in winter road maintenance are dependent on the climate and weather impacting roads and the road users’ requirements. As in many other fields of transportation, it is of interest to investigate fuel efficiency potentials in the different aspects of the road maintenance area. LÄS MER

5. 9. Winter maintenance and cycleways

   Författare :Anna Bergström; KTH; []
   Nyckelord :cycleways; winter maintenance; maintenance service level; mode choice; winter cycling frequency; winter road condition assessment; bicycle measurements; friction measurement; winter maintenance equipment;

   Sammanfattning : Increasing cycling as a means of personal travel couldgenerate environmental benefits if associated with acorresponding decrease in car-based transport. In seeking topromote cycling in wintertime, it is desirable to understandhow important the road surface condition is compared to otherfactors in people's decision to cycle or not. LÄS MER

7. 10. Geographical Information Technologies – Decision Support for Road Maintenance in Uganda

   Författare :Lydia Mazzi Kayondo-Ndandiko; Blekinge Tekniska Högskola; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Data Model; Dynamic Segmentation; Geographical Information Technologies GITs ; Geographical Information Systems for Transportation GIS-T ; Linear referencing; Methodological Framework; Research and Development; Road maintenance; Road Infrastructure Maintenance RIM ; Science Technology and Innovation; Spatial Data Infrastructure; Uganda;

   Sammanfattning : This study set out to develop a framework within which the use of Geographical Information Technologies (GITs) can be enhanced in Road Infrastructure Maintenance (RIM) in Uganda. Specifically it was guided by 3 objectives; 1. To assess the gaps in the use of GITs for RIM in Uganda and the limitations to accessing these technologies, 2. LÄS MER