Sökning: "OpenStreetMap OSM"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden OpenStreetMap OSM.

1. 1. Streamlining 3D City Modeling for Urban Flow Simulations by Automatic Integration of Multisource Topography

   Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

   Författare :Klara Lindroth; [2023]
   Nyckelord :automatic 3D city models; surface reconstruction; geometry pre-processing; CFD; OSM height attributes;

   Sammanfattning : In the workflow of computational fluid dynamics, geometry preparation is commonly the most time-consuming step. For a fast CFD simulation, automatic surface reconstruction to obtain 3D city models for a chosen area is essential. To address this need, a literature study was conducted to map available data suitable for 3D city models. LÄS MER

3. 2. Simulation of road traffic flow in Hangzhou

   Kandidat-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Louise Brandt; Anders Holmberg; [2022]
   Nyckelord :simulation; road traffic flow; traffic flow; traffic; sumo; netedit; dlr.de; zju; hangzhou; zhejiang; china; queue; queuing system; control; automatic control; tls; tli; phase time; cycle time; traffic light signal; traffic light intersection; pedestrian crossing; idling time; optimize traffic flow; traffic jam; un global goal; mfs; minor field study; sida; reduce emissions; emission; vehicle; pcu; matlab; python; xml; json; algorithm; variance; deviation; comparison; ratio; case; evacuation; scenario; green; detector; taz; traffic assignment zone; environment; carbon dioxide; randomtrips; flow; fringe; mingap; speeddev; departspeed; sigma; lanechangemodel; sl2015; commuter; public transport; busstop; osm; openstreetmap; sumocfg; traci; driving pattern; road lane; street lane; lane change; u-turn; intersection; junction; teleportation; teleport; route; depart; arrive; collision; street occupancy; occupancy; Technology and Engineering;

   Sammanfattning : Is it possible to increase traffic flows and decrease stand stills in rush hour traffic by tweaking existing traffic light signals? A vehicle’s engine running on idle is not useful in physical terms and emits unnecessary exhausts. By investigating and observing signal phase times on site in Hangzhou, China, an effort was made to find out if it was possible to get better flow and thus lower emissions by changing the traffic signal programs. LÄS MER

4. 3. Integration of Open Data in Disaggregate Transport Modelling : A Case Study of Uppsala

   Master-uppsats, KTH/Transportplanering

   Författare :Iqbal Surahman; Gustav Wegner; [2022]
   Nyckelord :Agent-based; Disaggregate Transport Model; Open Data; OpenStreetMap; OSM; GTFS; Agentbaserad; Disaggregerad Transportmodell; OpenData; OpenStreetMap; OSM; GTFS;

   Sammanfattning : Transport models are key in predicting travel behaviour and planning transport systems. Transport models can be either aggregated or disaggregated. Disaggregation means that travel behaviour is represented on an individual level, which can be beneficial because it offers a higher detail level and reduces aggregation bias. LÄS MER

5. 4. Quality Assessment of OpenStreetMap Footpath Data

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Alexander Hjelm; [2020]
   Nyckelord :;

   Sammanfattning : This project assesses the feasibility of reconstructing virtual cities from OpenStreetMap (OSM) road and building data, and will focus on the feasibility of including pedestrian footpaths. It will be examined how common it is that footpaths overlap with other map features such as roads and buildings. LÄS MER

7. 5. Map-aided localization for autonomous driving using a particle filter

   Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Författare :Simon Eriksson; [2020]
   Nyckelord :Particle filter; Monte Carlo filter; Gaussian noise; Bayesian estimation; probabilistic localization; autonomous vehicles; Scania; OpenStreetMap; Partikelfilter; Monte Carlo-filter; Gaussiskt brus; Bayesisk uppskattning; sannolikhetsbaserad lokalisering; autonoma fordon; Scania; OpenStreetMap;

   Sammanfattning : Vehicles losing their GPS signal is a considerable issue for autonomous vehicles and can be a danger to people in their vicinity. To circumvent this issue, a particle filter localization technique using pre-generated offline Open Street Map (OSM) maps was investigated in a software simulation of Scania’s heavy-duty trucks. LÄS MER