Sökning: "traffic safety"

Visar resultat 21 - 25 av 363 avhandlingar innehållade orden traffic safety.

1. 21. Are Beautiful traffic environments safer than Ugly traffic environments?

   Författare :Helena Drottenborg; Trafik och väg; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; driving behaviour; traffic safety; eye blink; heart rate; mood; basic emotional process; environmental psychology; gestalt theory; ugly; aesthetics; beautiful; speed.; Road transport technology; Vägtransportteknik;

   Sammanfattning : To link aesthetics to traffic safety, the field of environmental psychology was consid-ered. A new model of driving behaviour was developed, based on Lewin’s (1951) equation, B = f (P,E) and by employing Küllers’ (1991) model of the basic emotional process. LÄS MER

3. 22. Traffic Safety Potential and Effectiveness of Lane Keeping Support

   Författare :Simon Sternlund; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Traffic Safety; AES; Lane keeping; Effectiveness; LDW; Lateral positioning; ELK; CLRS;

   Sammanfattning : In the road transport system, crashes due to lane departure account for a large proportion of the most severe crashes that passenger car occupants are exposed to. While Electronic Stability Control (ESC) effectively prevents lane departure due to loss of control, lane departure due to unintentional drifting has not been addressed to the same extent. LÄS MER

4. 23. Safety Culture in Sea and Aviation Transport

   Författare :Åsa Ek; Ergonomi och aerosolteknologi; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; organizational climate; air traffic control; safety culture; passenger shipping; airport ground handling; Social sciences; Samhällsvetenskaper; Development psychology; Utvecklingspsykologi; Applied and experimental psychology; Tillämpad och experimentell psykologi; Technological sciences; Teknik; Säkerhetsteknik; Safety technology;

   Sammanfattning : The research presented in this thesis investigates sea and aviation transport safety culture, with a focus on perceptions and attitudes. A safety culture reflects the attitudes, beliefs, perceptions, and values that individuals share in relation to safety. LÄS MER

5. 24. Modelling and Lagrangian control of mixed traffic: platoon coordination, congestion dissipation and state reconstruction

   Författare :Mladen Čičić; Karl Henrik Johansson; Miroslav Krstić; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; traffic control; Lagrangian control; mixed traffic models; Intelligent Transportation Systems; Connected and Automated Vehicles; traffic congestion; platoon coordination; moving bottlenecks; bottleneck decongestion; stop-and-go wave dissipation; traffic state reconstruction; Electrical Engineering; Elektro- och systemteknik;

   Sammanfattning : Traffic congestion is a constantly growing problem, with a wide array of negative effects on the society, from wasted time and productivity to elevated air pollution and reduction of safety. The introduction of connected, autonomous vehicles enables a new, Lagrangian paradigm for sensing andcontrolling the traffic, by directly using connected vehicles inside the traffic flow, as opposed to the classical, Eulerian paradigm, which relies on stationary equipment on the road. LÄS MER

7. 25. On the Treatment of Flow in Traffic Safety Analysis, - a non-parametric approach applied on vulnerable road users

   Författare :Lars Ekman; Trafik och väg; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Social sciences; Samhällsvetenskaper; Teknik; Technological sciences; safety performance function; accuracy; simulation; bootstrap; bicyclist; pedestrian; risk; Traffic Safety; accident rate;

   Sammanfattning : The treatment of flow in the area of traffic safety has a long tradition. The influence flow has on the number of accidents is, however, often considered so obvious that it tends to be trivial. In this thesis I can show that the relation between flow and accidents holds interesting information. LÄS MER