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Modelling of the tactical behavior of cyclists

DataFromSky delivers the data for the models of tactical behavior of cyclists communicating their intentions.
The research project focuses on modeling the behavior of bicyclists at intersections under complex traffic situations and interactions with motor vehicle traffic.

Bicycling is an important part of the urban transport system and traffic control measures are necessary to control traffic flow. The capacity and traffic quality of all traffic participants at signalized intersections can be highly influenced depending on the volume of bicycles.

Video data for this project were collected by setting up high definition cameras on the top of the buildings (to obtain suitable aerial view for the DataFromSky Aerial analysis) near several intersections in the cities of Munich and Freiburg in Germany. Explicit and implicit behavior patterns of cyclists at intersections in the video are observed. Explicit behaviors include bicyclists’ body language to reveal their intentions like hand gestures or head movement. Implicit behaviors such as speed change, view change, or path change, indicate the lateral movement of cyclists indirectly. As for lane changing behavior and driving features, such as speed and positions, extracted by DataFromSky, the cyclist’s path selection behavior at intersections is analytically described.

The analyzed video data results in a model that predicts the behavior of cyclists at intersections based on their explicit and implicit behavior patterns in specific traffic situations. The resulting model can be used for example for supporting tactical and operational functions of automated vehicles in specific traffic situations or as an initial analysis that can give traffic and urban planners a very good overview for proposing some traffic adjustments.

This research project, with the use of DataFromSky, is being carried out by Technical University of Munich in Germany, Department of Civil, Geo and Environmental Engineering, lead by Dr. rer. nat. Andreas Keler, Dr.-Ing. Matthias Spangler, created by M.Sc. Georgios Grigoropoulos and Niu Ruixin.


Traffic flow based on trajectries: green – cars, red – cyclists, blue – pedestrians

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Our team presents DataFromSky in the TV news

DataFromSky Team was asked by the Slovak TV to answer the question on how can traffic analysis using AI help to improve the worsening traffic situation in many large cities? Intelligent traffic analysis can help to identify main transportation problems and the causes of frequent bottlenecks or traffic conflicts. Nowadays, transport engineers have a very powerful tool for planning and detecting these shortcomings = artificial intelligence platform DataFromSky.
DataFromSky Aerial analysis is, for its high precision and detailed telemetry data about each traffic participant, utilized by many municipalities, transportation departments, traffic engineers, urban and city planners or universities and research institutions worldwide. Our Aerial analysis is often used as an input for various traffic simulation models, or in behavioral studies of drivers for self-driving vehicles.

Have a look at the full reportage in Slovak TV

(play the video from 0:35 – 5:15, available only in Czech/Slovak language).

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DataFromSky LIGHT shines at NIGHT

Are you wondering is DataFromSky Light can analyze videos recorded during the night or dusk or bad light conditions? Have a look at a new video processed by our fully automatic service DataFromSky LIGHT! There is proof that yes, it can!

Automatic traffic data analysis at any time, in any weather conditions!

Do you want to test DataFromSky LIGHT and have your video analyzed? Our DFS Light analysis is free of charge!
Follow these 3 basic steps:
1) record the traffic scene using a static camera or simply your phone
2) upload the video to WeTransfer.com and send it to email address analyze@datafromsky.com
3) receive the results together with DataFromSky Light Viewer software and enjoy your data

For more information, contact us at info@datafromsky.com

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Advanced roundabout analysis with DataFromSky

Need to perform operational analysis of a roundabout based on the real traffic data? DataFromSky supports the calculation of a wide range of operational parameters such as critical-gap time / follow-up time / critical headway etc. Get super accurate traffic data for your research and/or traffic study regardless of the type of intersection using DataFromSky.

Monitoring and analyzing traffic behavior at intersections and roundabouts is an important task in the present traffic research. Trajectory analysis provides higher-level situational awareness by understanding the behavior of every traffic element in the analyzed scene due to the rich information contained in its own motion. DataFromSky is able to extract trajectories and their spatial-temporal statistical characteristics automatically with very high accuracy and high sampling frequency. Accurate traffic data is essential in any modern research in the field of traffic analysis such as:

  • Motion pattern classification, Abnormal motion pattern detection,
  • Traffic mining, Prediction of non-recurrent short-term traffic patterns,
  • Developing next-generation driving behavior models, Trajectory clustering,
  • New perspective on merging behavior – gap seeking instead of acceptance behavior,
  • Evaluation of traffic simulation methods / models on real data, Capacity estimations,
  • Traffic congestion studies, Travel-time, Vehicle counting, Trajectory based analysis,
  • Road safety, Pedestrian and cyclist safety, Road-user interactions, Smart analysis,
  • Driver decision making and complex multi-actor interactions, Traffic instabilities,
  • Empirical evidence of multi-anticipation (drivers have multiple leaders),
  • Study of behavior adaptation effect.
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    Traffic accident detected with DFS Light!

    An unexpected end of the trajectories – DFS Light detected a traffic accident! Take a look at the video below.
    Have you already tested our new service DFS Light on your own video sample? If not, do not hesitate to do so! Follow these 3 basic steps to get precise traffic data faster than never:
    1) record the traffic scene using a camera or simply your phone (to reach the best results, follow the instructions in this video)
    2) upload your video to WeTransfer.com and send it to email address analyze@datafromsky.com
    3) receive the results together with DataFromSky Light Viewer software and enjoy your data
    You can upload up to 2 GB free of charge, try it today!

    Do you need more precise traffic data? Are you interested in conflict analysis and evaluation of traffic safety? If yes, take a look at our new set of tools for the safety evaluation based on the behavior of road users – click to find out more or contact us for more information.

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    Automatic traffic analysis on an area of 55,000 square meters? Possible!

    Object counting and classification, gathering speed & acceleration data, O/D matrix and much more on an area of 55,000 square meters. DataFromSky is the name of the most advanced Aerial AI for an understanding of movements in videos taken by drones, balloons or helicopters.

    Take a look at another nice shot from Italy taken from a balloon. The length of the video is 2 hours and 31 minutes. DataFromSky tracked 5 455 objects (4881 cars, 325 medium vehicles, 77 heavy vehicles, 68 buses, 101 motorcycles, 1 bicycle, and 2 pedestrians) with the average speed of 12.24 km/h and the total distance traveled by all participants reaching 1 847 km! Do you need extremely accurate data about traffic flow? Contact us!

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    DataFromSKI? Yes, we can count skiers too!

    We have moved from the Sky to the Ski!
    With our newly released DataFromSky Light, we are testing the software in unusual conditions and scenarios. Counting how many skiers are on the slopes? Not a problem at all. With our software, one can easily analyze how many people are currently on the slope, how many are waiting by the ski lifts, how many of them just stopped by a ski bar or restaurant or who is skiing outside marked slopes and much more!

    You still have a chance to try the software on your own video, free of charge. It could be another atypical record, but keep in mind the recommended parameters for the input video (to achieve the best results with the highest accuracy):

  • resolution: 1280×720 or more (min. PAL)
  • bitrate: 5 Mb/s or more
  • framerate: 25 or more
  • min. traffic object size: 32px in one dimension
  • continuous video without cuts
  • no camera movement
  • Upload your video to WeTransfer and send it to analyze@datafromsky.com – if you need more information, follow the instructions in this post.

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    Traffic Behavior and Safety study in Denmark

    In many cities, there are places where many road users pass or stay in a complicated network of routes and get into a risky interaction. It can be difficult to get an overview of the whole situation and define the “hot spots” where the traffic behavior is simply non-standard. Our tool Data From Sky is in most cases be able to uncover, sort and analyze all movements of vehicles, cyclists and pedestrians in a larger area and evaluate critical parts of a road network, that might be risky for any traffic participant. This kind of overview and analysis can give traffic and urban planners a very good starting point for designing any adjustments.

    The figure below shows an area in the city of Aarhus in Denmark and displays the flow of cyclists (pink trajectories) and pedestrians (green trajectories) in the 2-hour period. The main goal of the analysis is to provide the Aarhus Municipality with an overview of cyclists and pedestrian movement in the analyzed area and identify some patterns in their traffic behavior.

    After having formed a detailed overview of all the different flows and routes, author of this study (Birger Villadsen, Traffic Specialist at COWI) has focused on those areas, where cyclists’ and pedestrians’ behavior gets into a collision. The detailed DataFromSky Analysis helped to analyze the problematic spots and draw up proposals for changes, that can help to simplify the traffic flow. Aarhus Municipality will evaluate the list of proposals and test them on the site by making temporary changes and observing whether they have the intended effect before the changes are implemented permanently.

    *full article can be found at Cowi Creators blog.

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    Amazing results of DataFromSky Light service!

    Have you already tried our new service DataFromSky Light – fully automatic analysis of traffic from static cameras? Not yet? Try it now for free!
    Get the precise traffic data fast and reliable just in 3 steps:
    1) record the traffic using a camera or simply your phone (to reach the best results, follow the instructions in this video)
    2) upload your video to WeTransfer.com and send it to analyze@datafromsky.com
    3) receive your results together with DataFromSky Light software and enjoy your data (various features for user: counts, OD-matrix, visualizations, many export functions, classification of objects, trajectories and much more)!

    Take a look at a great example of the DFS Light analysis – our software easily handles and can analyze such traffic conditions prevailing e.g. in India. Could you count all of the motorbikes? We can, in a while!

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    PF 2019

    DataFromSky team and everyone at RCE systems would like to wish to all of our partners a wonderful holiday season
    and prosperous and joyful New Year. Thank you for your continuing support in 2018 and we are looking forward to continued success in 2019!

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