scholarly journals Empirical Approach for Determining Lane Change Distance at Obstacle Avoidance Manoeuvre

2016 ◽  
Vol 28 (3) ◽  
pp. 267-275
Author(s):  
Zoran Miladin Papić ◽  
Goran Zovak ◽  
Vuk Bogdanović ◽  
Nenad Josip Saulić
Keyword(s):  
Obstacle Avoidance ◽  
Traffic Accident ◽  
Research Study ◽  
Intelligent Vehicles ◽  
Theoretical Research ◽  
Maximum Speed ◽  
Lane Change ◽  
Unique Problem ◽  
Test Track ◽  
Avoidance Manoeuvre

The lane change of vehicles for avoiding hitting a sudden obstacle represents a significant and unique problem for traffic accident experts. Most mathematic models for determining the lane change distance are based on theoretical research studies and a lot of simplifications and approximations. In order to analyse the influence of different drivers and vehicles on a manoeuvre, an experimental research study of lane change was carried out at the test track which enables repeatability in the same conditions. The drivers were instructed to drive through the test track at a maximum speed without displacing the traffic cones. Based on the statistical analyses of the successful lane change manoeuvres an empirical model for the calculation of lane change distance for obstacle avoidance was formed. This model can be applied in the procedure of traffic accident reconstructions as well as within the development of the concept of modern intelligent vehicles.

scholarly journals Test UHCJ20m—Measurement Procedure Standardization and Metric Characteristics Determination

Sensors ◽  
2020 ◽  
Vol 20 (14) ◽  
pp. 3971
Author(s):  
Aleš Dolenec ◽  
Ivan Milinović ◽  
Vesna Babić ◽  
Dražan Dizdar
Keyword(s):  
Research Study ◽  
High Reliability ◽  
Intraclass Correlation ◽  
Measurement Procedure ◽  
Future Research ◽  
Maximum Speed ◽  
Sports Events ◽  
Jump Test ◽  
The Subject ◽  
Very High

The purpose of the research study was to standardize the measurement procedure and determine the reliability, homogeneity, and sensitivity of a 20 m unilateral horizontal cyclic jump test (UHCJ20m) whose intentional (assumed) measurement aim is the lower extremities’ explosive strength. The subject sample consisted of 31 students from Zagreb University (20.68 ± 1.96 years of age, height 185.16 ± 7.19 cm, body mass 79.48 ± 9.23 kg) actively involved in various sports events. The UHCJ20m test was performed three times using a dominant (take-off) leg with an active rest of 15 min between the repetitions. The results showed that the UHCJ20m test had satisfactory sensitivity and a very high reliability: Cronbach α = 0.95, intraclass correlation coefficient (ICC) = 0.94 and homogeneity average intertrial correlation (AVR) = 0.88. Future research studies should be aimed at determining the metric characteristics of the UHCJ20m test with a population of athletes in sports characterized by start acceleration and maximum speed running.

Model Predictive Automatic Lane Change Control for Intelligent Vehicles

2020 ◽  
Author(s):  
Ren Meng ◽  
Wu Guangqiang ◽  
Chen Xunjie ◽  
Liu Xuyang
Keyword(s):  
Intelligent Vehicles ◽  
Lane Change

COMPARATIVE ANALYSIS OF THE SUBJECTIVE WELL-BEING OF THE BALTIC COUNTRIES' INHABITANTS IN THE CONTEXT OF ECONOMIC DEVELOPMENT

2019 ◽  
Vol 6 ◽  
pp. 334
Author(s):  
Jelena Lonska ◽  
Vera Komarova
Keyword(s):  
Economic Development ◽  
Regression Analysis ◽  
Research Study ◽  
Satisfaction With Life ◽  
Theoretical Research ◽  
Personal Satisfaction ◽  
Development Indicators ◽  
Baltic Countries ◽  
The Baltic ◽  
Research Studies

Since the Baltic countries have joined the European Union, the value of personal satisfaction with life has fluctuated – decreased or increased – along with GDP per capita until the crisis, i.e. until 2009; afterwards, the nature of this dependency started to change across the countries. The novelty of the current research study is the analysis of the people's SWB dependence upon the economic development indicators in the Baltic countries after their accession to the EU, conducted in the context of the results of previous research studies on the topic. The research aim is to review theoretical research studies on the interrelation of people’s SBW and economic development of the country, as well as to analyse the situation in Latvia, Lithuania, and Estonia. The following research methods were applied: the monographic method and regression analysis. The findings of the research study showed that Estonia was the leader among the three Baltic countries in all the economic development indicators considered, whereas Latvia was behind in all the indicators; moreover, the level of personal satisfaction with life was the highest in Estonia, although, as the results of the regression analysis demonstrated the SWB of people in Estonia was the least dependent on the economic development indicators. 

Research on Embedded Intelligent Vehicle Tracking Avoidance of Obstacle

2014 ◽  
Vol 1044-1045 ◽  
pp. 926-929
Author(s):  
Yan Yan Cheng ◽  
Quan Bo Yuan
Keyword(s):  
Obstacle Avoidance ◽  
Intelligent Vehicles ◽  
Vehicle Tracking ◽  
Intelligent Vehicle ◽  
Automotive Applications ◽  
Automatic Tracking

This paper describes the development and widely cited robots for intelligent vehicles unmanned automotive applications, smart car automatic tracking and avoidance were studied to select the appropriate tracking and obstacle avoidance algorithm, used to embed smart car achieve its tracking avoidance function..

scholarly journals Budgerigars adopt robust, but idiosyncratic flight paths

2019 ◽  
Author(s):  
Debajyoti Karmaker ◽  
Ingo Schiffner ◽  
Mandyam V. Srinivasan
Keyword(s):  
Detailed Analysis ◽  
Obstacle Avoidance ◽  
Optic Flow ◽  
High Speed ◽  
Care Needs ◽  
Maximum Value ◽  
High Propensity ◽  
Avoidance Manoeuvre ◽  
Minimal Deviation ◽  
Flight Trajectories

AbstractWe have investigated the paths taken by Budgerigars while flying in a tunnel. The preferred flight trajectories of nine Budgerigars (Melopsittacus undulatus) were reconstructed in 3D from high speed stereo videography of their flights in an obstacle-free tunnel. Individual birds displayed highly idiosyncratic flight trajectories that were consistent from flight to flight over the course of several months. We then investigated the robustness of each bird’s trajectory by interposing a disk-shaped obstacle in its preferred flight path. We found that each bird continued to fly along its preferred trajectory up to a point very close to the obstacle before veering away rapidly, making a minimal deviation to avoid a collision, and subsequently returning to its original path. Thus, Budgerigars show a high propensity to stick to their individual, preferred flight paths even when confronted with a clearly visible obstacle, and do not adopt a substantially different, safer route. Detailed analysis of the last-minute avoidance manoeuvre suggests that a collision is avoided by restricting the magnitude of the optic flow generated by the obstacle to a maximum value of about 700 deg/sec. The robust preference for idiosyncratic flight paths, and the tendency to pass obstacles by flying above them, provide new insights into the strategies that underpin obstacle avoidance in birds. It could also have wide-ranging implications for conservation efforts to mitigate collisions of birds with man-made obstacles – especially obstacles that are poorly visible, such as wind turbines or buildings with glass facades. Our findings indicate that care needs to be exercised to ensure that newly planned structures are not located near major bird flyways, wherever possible, and to ensure that the positioning takes into consideration the cues and behaviours that birds use to avoid such obstacles.

scholarly journals Research on Lane-Change Strategy With Real-Time Obstacle Avoidance Function

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 211255-211268
Author(s):  
Qiong Wu ◽  
Wu-Dong Liu ◽  
Shi-Yong Guo ◽  
Shuo Cheng ◽  
Shao-Jie Li ◽  
...  
Keyword(s):  
Real Time ◽  
Obstacle Avoidance ◽  
Lane Change ◽  
Change Strategy
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