Posts Tagged: traffic data

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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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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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    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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    DataFromSky Light is now out!

    Christmas is just around the corner and we have prepared a special gift for you. An alpha version of our new service DataFromSky Light is now available for all traffic analysis enthusiasts! We have moved closer to the ground to make the awesome features of the DataFromSky closer to you as well. Fully automatic traffic data extraction from various “ground” video sources can be now smoothly and quickly delivered to you using the DataFromSky Light service. Rethink the traffic studies with our free video analytic tools, rethink the way you explore traffic!

    The DataFromSky Light is an online service that processes traffic-related video data captured by smartphones, camcorders or highway surveillance cameras. It detects, classifies and tracks traffic objects in any video source. The following traffic object classes are supported:

    • pedestrian
    • bicycle
    • motorcycle
    • car
    • heavy vehicle

    Video and result data exchange is performed via WeTransfer sharing service. How to use the DataFromSky Light service can be seen in the following video:

    The results of the traffic analysis are provided in our TLGX format and can be viewed using a new lightweight license-free version of the DataFromSky Viewer called DataFromSky Viewer Light. The DataFromSky Viewer Light can visualize the spatial-temporal data that can be interactively examined in the whole analyzed time interval. The DataFromSky Viewer Light has the most of the licensed DataFromSky Viewer version functionality including:

    • traffic objects counting
    • directional/selective gate counting
    • O/D matrix counting
    • capacity estimation
    • headway statistics computation
    • gap time computation
    • time to follow computation
    • target time computation
    • trajectories visualization
    • heat-map visualization
    • export of the trajectories in various formats (.csv, .trj, .xlsx)
    • snapshot/video render export

    The DataFromSky Light can process data from any video input such as static/handheld consumer camera video recording or a video capture from an existing video infrastructure (i.e. surveillance cameras). For the best traffic analysis results we recommend the following input video parameters:

    • 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

    The service can provide accurate results even beyond these parameters. We also recommend minimizing occlusions in the view on the scene in order to maximize the traffic analysis accuracy. For the post process traffic analysis in the DataFromSky Viewer Light software, it is useful for the input video to be as stable as possible with the area of the interest kept in the view throughout the whole video capture process to prevent a misleading gate counting since the video is not georegistered.


    Picture 1: Examples of scene views suitable for the DataFromSky Light.


    Picture 2: Not suitable scene views for the DataFromSky Light service (commented from the top left to bottom right – rotated; intended for DataFromSky Aerial; a lot of partial occlusions; big moving objects causing enormous occlusions)

    There is no registration needed in order to use the DataFromSky Light. Free usage of the service is limited to 5 videos per day per one e-mail address. The maximum length of 2 hours per video can be analyzed for free as well. For the unlimited DataFromSky Light access please contact info@datafromsky.com. Try and see for free.

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    New partners of DataFromSky

    The whole team of DataFromSky is proud to announce new exclusive partnerships in South and North America! We have gained new strategic partners to start a thriving cooperation with. TADI-US will represent DataFromSky in U.S. states Minnesota and Wisconsin, Cinco de Colombia is operating in the Colombian market. Welcome on board!

    TADI-US
    TADI-US – Traffic Analysis & Design, Inc., is the premier traffic engineering firm in the region. To their service portfolio belong traffic engineering, traffic impact analysis, corridor studies or signal design and control. They are also active in the field of traffic safety. Contact TADI on info@tadi-us.com.

    Cinco de Colombia
    Cinco. is a research and consulting company that develops and implements state-of-the-art technology for the execution of its projects in many fields. Their goal is to permanently search for new engineering advances that guarantee the highest possible precision within optimal processes. The contact person for Cinco. is Mr. Javier Visbal Martínez Ing. Mag., who can be contacted on javier@cinco.consulting.

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    DataFromSky cooperates with PTV Vissim

    We are proud to announce that we have connected DataFromSky with a simulation model VISSIM! PTV Vissim is a microscopic multi-modal traffic flow simulation software package developed by PTV Group, first developed in 1992 and nowadays, Vissim is a global market leader in microscopic simulation models! The simulation displays all road users and their interactions in one model.

    We have created a promo video demonstrating how to export the results from DataFromSky and use it as an input in Vissim. This possibility opens so many opportunities how to utilize the real data from DataFromSky analysis and how to increase the accuracy of your simulation model!

    What kind of data can be exported and what are the plans for further interconnection?
    – traffic counts
    – vehicle category (number of cars, heavy vehicles, buses, motorcycles etc.)
    – turning movements – route decisions and routes
    – speeds for model calibration
    – accelerations
    – travel times (between two defined gates)
    – headways between two vehicles following each other (gap in seconds) – advanced gap analysis and headways data provided only by DataFromSky!
    – queue lengths (will be added)

    The video plays also the role of the very first User manual video of DataFromSky Viewer – it describes the process of creating counting gates in order to export the Origin-destination data and import them into Vissim. Other short instructional videos will follow soon!

    Enjoy the video:

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    DataFromSky presented on Startup-day in Prague

    DataFromSky attended the event called Smart Startup Day organized by ČSOB (Československá obchodní banka, a. s.) and held on 26. 2. 2018 in Prague.
    The event welcomed innovative start-ups from Czech Republic and was focused on the following topics:

  • Mobility
  • Smart home
  • Smart city
  • Smart office / Flexible workspace
  • Smart data and AI
  • Robotization and automation of internal processes

    It was a good opportunity to meet with other innovative startups and see their ideas and products. We hope that this event will help us to create some new business connections and to achieve greater awareness of DataFromSky also within Czech Republic.

    See some pictures from the event below:


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    DataFromSky analyzed huge intersection near Dubai!

    Recently, DataFromSky has performed traffic analysis of another video from United Arab Emirates, Dubai! This huge multilevel intersection in the middle of the arabic desert, which you can see in the video below, was a challenging task due to the large area covered and the weather and climate environment with very dusty and sandy conditions. The object of the analysis was monitoring of traffic behaviour in this vast area with traffic density reaching almost 8 500 vehicles per hour!

    As you may see in the video, large area of one busy cloverleaf near the city of Dubai was analyzed – the average length of one trajectory in the video reaches 800 meters.

    If you regurarly follow our website, you may know, that we are still working on development of mobile solution, which will be capable of collecting and analyzing traffic data in real time. This smart UAV analyzer will be a subsystem of Intelligent Transportation System (ITS). The main objective is to design the cutting edge technology: an UAV based solution for the purpose of active traffic management over a road network.

    See also our latest video analyzed in UAE by clicking on this link.

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    Curtin U evaluate UAV use for traffic data

    Sam Ziusudras, from Curtin University’s Civil Engineering department is evaluating the reliability of the traffic data obtained from small Unmanned Airborne Vehicles in generating Origin-Destination matrices for intersections. As a part of this study, Sam and the research team will be flying a drone to capture video from the flow of the traffic through an intersection in Western Australia. The trajectories would then be extracted using DataFromSky Services, and finally compared to the ‘manual count’ of volume studies for any discrepancies.

    Here’s a video from their first test:

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