Reaction time & Safety time gap

Slides:

Advertisements

Similar presentations

Starting, Moving, and Stopping the Vehicle

Advertisements

Computational Modelling of Road Traffic SS Computational Project by David Clarke Supervisor Mauro Ferreira - Merging Two Roads into One As economies grow.

ACSF Informal Group Industry proposals 1 st Meeting of ACSF informal group April 29 and 30, 2015 in Bonn 1 Informal Document ACSF

Th e E u r o p e a n T y r e a n d R i m T e c h n i c a l O r g a n i s a t i o n 1 Torque Influence on C3 category tyres Geneva WP29 / GRB 51 st session.

Describing and Measuring Motion Section 1 Section 1.

AHS – The Vision. The Automated Highway System (AHS) and The Intelligent Vehicle Initiative (IVI)

Presentation for Document ACSF-03-03_rev1 Oliver Kloeckner September rd meeting of the IG ASCF Munich, Airport Informal Document.

Chapter 6 Adaptive Cruise Control (ACC)

Vehicle Safety - (R)Evolution of Driving Assist Systems Jochen Schäfer Heiner Hunold Submitted by the experts from Informal document GRRF th GRRF,

1 ACSF Test Procedure Draft proposal – For discussion OICA and CLEPA proposal for the IG Group ACSF Tokyo, 2015, June Informal Document ACSF

Identification of regulatory needs for ACSF Oliver Kloeckner 16-17th June nd meeting of the IG ASCF Tokyo – Jasic Office Informal Document.

John Harding ITS Connected Vehicle Public Meeting

Virginia Department of Education

1 Integrated Vehicle-Based Safety Systems Initiative Jack Ference United States Department of Transportation 2006 ITS World Congress 8-12 October 2006.

Protective Braking for ACSF Informal Document: ACSF

Minimum Risk Manoeuvres (MRM)

Research on HMI Homework item 1 (ACSF-01-13)

Safety Distances and Object Classifications for ACSF Informal Document: ACSF

B1.7a Using formulas to calculate displacement Chapter B1.

Traffic Flow Characteristics. Dr. Attaullah Shah

1 6th ACSF meeting Tokyo, April 2016 Requirements for “Sensor view” & Environment monitoring version 1.0 Transmitted by the Experts of OICA and CLEPA.

MGM’S COLLEGE OF ENGINEERING NANDED. Presented By: ALEEMUDDIN K.M T.E MECH ROLL NO:72 Guided By: A.I.RAHMAN SIR.

Managed motorways Arvid Aakre Seminar Traffic Management and Control

Hand-off Warning Time of LKA

VEMANA INSTITUTE OF TECHNOLOGY,BANGALORE

Introuction Convective heat dissipation makes the greatest contribution to brake disc cooling in most road vehicle driving conditions this mode of heat.

Describing and Measuring Motion

Informal Document: ACSF-06-16

DIRECTOR, ROAD SAFETY ANALYSIS

Lane Change Test for ACSF

SE24 – WI51 – Fieldtest Test Setups and Scenarios

Presentation of ACSF C tests

Mohammad Morsheduzzaman Lecturer, Physics

Submitted by UNECE Document No. ITS/AD-07-07

The challenges of automated and connected driving

Informal Document: ACSF Rev.1

ACSF-C2 2-actions system

Lane change driver reaction times

Lane change driver reaction times

Dr. Patrick Seiniger, Federal Highway Research Institute (BASt)

Timing to be activated the hazard lights

ACSF-C2 2-actions system

Case Study Autonomous Cars 9/21/2018.

Unit 4: Vision and Space Management

Ring Road Experiment For Driving Safety Analysis Beijing, 2011 Spring

Take-over time comparison by

Comparison of Cat.C HMI solution and vehicle without Cat.C

Zhaoxiang He, Ph.D. Student Xiao Qin, Associate Professor

Signal Timing: Putting it All Together

on Transition for level 3 Automated Driving system

Submitted by the Expert of Sweden

ACSF C tests Prepared by JAPAN 15 November, 2017

Chapter 1 Introduction.

Average Deceleration and Peak Deceleration

Case Study Autonomous Cars 1/14/2019.

Passing other Vehicles

Safety Distance to the front

Data Filtering Method Korea Automobile Testing & Research Institute

VEHICLE TECHNOLOGY BRAKE SYSTEMS.

Comparison of Cat.C HMI solution and vehicle without Cat.C

Indicator Variables Response: Highway MPG

The comparison of warning effectiveness

WLTP Validation3 test result ~ Road load determination ~

Safety considerations on Emergency Manoeuver

Chapter 6 Fundamental Principals of Traffic Flow

Criteria for deeming Driver availability

Describing and Measuring Motion

Status of the Informal Working Group on ACSF

Regulation ECE R79-03 ACSF C 2-Step HMI

Automated Lane Keeping Systems

Presentation transcript:

Reaction time & Safety time gap Informal Document - ACSF-15-04 Reaction time & Safety time gap On the public road Korea Automobile Testing & Research Institute Automated Driving Research Office

Configuration of Experimental Vehicle Experimental Vehicle Configure Front Radar (Delphi) Front LiDAR (IBEO LUX) Rear-side LiDAR (SICK LMS151) Rear-side Radar Micro Autobox Computer RT GPS

Lane Change Data Acquisition Experiment Location(highway) 50~100kph 50~100kph Highway from Seoul to Incheon airport - Total 50km 50~110kph 50~100kph Highway near Seoul - Total 250km Triangular merge section

Safety Region Plot based on driving data O : LC Start X : LC End Clearance[m] Clearance[m] Relative Velocity[km/h] Relative Velocity[km/h]

Reaction time for Lane Change Procedure Example of Reaction Time decision Srear = dv*tB+ dv²/2abrake + vego*tG Target velocity[m/s] Reaction Time Target Vehicle deceleration Lateral Distance[m] time [sec] Vehicle moving Start(=LC start)

Reaction time for Lane Change Procedure Relative Velocity[km/h] Reaction Time distribution Srear = dv*tB+ dv²/2abrake + vego*tG From 0~10km/h Min = 0.1sec, Max = 2.2sec Average = 0.85sec From 10~20km/h Min = 0.1sec, Max = 1.9sec Average = 0.86sec From 20~30km/h Min = 0.2sec, Max = 1.5sec Average = 0.60sec Reaction Time[sec] → Average 0.83sec Relative Velocity[km/h]

Safety time gap for Lane Change Example of Safety time gap Srear = dv*tB+ dv²/2abrake + vego*tG Target velocity[m/s] Deceleration of braking ends Lateral Distance[m] time [sec]

Safety time gap for Lane Change Safety time gap at the end of deceleration Srear = dv*tB+ dv²/2abrake + vego*tG Relative Velocity[km/h] Safety time gap[sec] → Average 0.95sec From 0~10km/h Min = 0.49sec, Max = 2.41sec Average = 1.03sec From 10~20km/h Min = 0.48sec, Max = 1.86sec Average = 0.88sec From 20~30km/h Min = 0.51sec, Max = 1.14sec Average = 0.87sec