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Progress Review by Taeho

Title: Personalized autonomous driving maneuver based on reinforcement learning

Abstract:

It is evident that road users will be changed from human-driven cars to automated-driven cars in the future by progressive research trends. However, the adoption of autonomous vehicles in our daily life is controversial in many different aspects since people have not ready to accept autonomous vehicles yet. Significant concerns are safety and reliability. According to Reuters[1], 67 percent of respondents considered that the safety standard of autonomous vehicle driving should be higher than conventional vehicle driving. Plus, on 2020 March, almost half of the Americans responded that they would never take autonomously driven cars, and 60% of respondents said they would have more trust in the auto-driven car if they understand how it works[2]. People tend to think that ten more years is required to believe automated driving system[2].
In order to answer the questions above, car manufacture such as Tesla, Hyundai, and so on have been putting so much effort to bring the autonomous vehicle era to us sooner [3, 4]. However, autonomous technology is still insufficient for being used in reality yet. The manufactures offer only driving assistance systems so far, such as the Advanced Driver Assistance System(ADAS), and recommend people to use the systems only on the highway. The primary reason for driving automatically in the urban area is complicated because of the lack of infrastructure for communication and plenty of components to consider for safe driving compared to highway[5-8].
When it comes to urban areas, the typical types of intersections can be categorized into a signalized and unsignalized intersections. In the case of the signalized intersection, traffic signal plays a role in maximizing the traffic flow efficiency under the premise of ensuring crossing priority. However, unsignalized intersection is a totally different story. Although fewer cars might cross the intersection than signalized one, the priority of crossing the intersection has to rely on each driver’s decision making since most countries outside of North America, and South Africa does not adjust stop sign rule[9]. Therefore, traffic at unsignalized intersections not only considers crossing the intersection safely but also needs to be react similarly to how humans drive. Many researchers have begun to focus on the study on unsignalized intersection control to give people trustworthy autonomous driving experience. Therefore, people would trust and ride autonomous vehicles in the future. In this study, the techniques that consider the human experience and make a car drive autonomously will be investigated.
When it comes to consider the human experience, human-in-the-loop(HITL) and Virtual Reality(VR) technology are implemented for this study. The HITL approach gets the spotlight due to the inability of a computer system to accurately accomplish tasks, which require human participation [10-12]. VR technology is prevalently used to offer a realistic experience to participants [13]. By integrating two techniques, it has the potential to carry out practical driving behavior datasets involving human experience.
In the case of getting an autonomously driven maneuver supervised(ref) and reinforcement learning(ref) have already been conducted. Among them, reinforcement learning(RL) has been paying attention due to its feature that the agent is able to do self-study cooperating with the environment. The remarkable benefit of reinforcement learning is that it could give a better solution that the human being even never thought about or show technique that very limited people could perform. In addition, in a computer science field, they have started considering putting human experience or human knowledge in the middle of the reinforcement learning procedure to find the optimized result quickly[14]. Likewise, the agent considering individual’s preference by human-in-the-loop technique has been used in a different area. For example, the fashion industry developed a personalized outfit recommendation system depending on each customer’s taste, StyleSnap service from Amazon. Therefore, it would be worthy of researching optimized autonomous driving maneuvor based on individual’s driving habit. The research gaps that can be filled are as follows: 

  • Optimizing autonomous driving maneuver at Unsignalized intersection research is insufficient compared to research at the signalized intersection.
  • Most of them do not consider human behavior and only focus on the efficiency of movement, but this study will consider people3’s characteristics.
  • Training based on the personalized driving data is expected to shorten the time to reach the optimized value for reinforcement learning.
  • It is possible to compare how realistic the trained model is by comparing the data of human driving in a virtual environment.

김인희교수 2021 기초연구사업 신진연구과제 선정

김인희 교수가 과학기술정보통신부가 주관하고 한국연구재단이 지원하는 2021년도 기초연구사업 신진연구자 지원 사업에 선정됐다.

한국연구재단 기초연구사업의 신진연구자 지원 사업은 연구자의 창의적 연구의욕 고취 및 연구역량 극대화를 통해 우수 인력을 양성하고 국가 경쟁력을 제고하기 위한 사업으로, 김인희 교수는 5년간 약 7억원의 연구비를 지원 받게 된다.

과제명: Covid-19 시대의 공유 모빌리티와 대중교통을 연계한 교통운영 방안

 

한국ITS학회 2020년도 추계학술대회 우수논문상 수상

축하합니다. 

권동현, 박솔은 학생이 2020 한국 ITS학회 추계 학술대회에서 우수논문상을 수상하였습니다!!

한국ITS학회 2020년도 추계학술대회

1. 개요

□ 일정/장소    

○ 일정: 2020년 11월 19일(목) ~ 20일(금)
○ 장소: 제주한라대학교 한라컨벤션센터

□ 학술대회 주제    

○ 그린뉴딜정책에 따른 ITS의 확대 추진 및 고도화

□ 논문 제목  

  • Deep Learning 기반 RSE 검지기 교통량 데이터 보정연구 by 권동현, 박솔은, 이창희, 김인희
  • 자율주행차량 인프라 규모에 대한 거시적 교통흐름 분석 by 강지우, 유예지, 정재은, 김인희

교통신호기 제어장치 특허출원

TOMMs와 TUPA의 합작으로 특허 출원!!

2020 추계 교통학회 우수 논문상 수상

TUPA 3학년 정재은 “GPS TRAJECTORY DATA기반 통행비용함수 보정방안” 주제로 2020 교통학회 논문 발표하여 우수 논문상 수상

 

Special Issue

Active Transportation describes all human-powered forms of travel. Walking and cycling are among the most popular and can be combined with other modes, such as public transit. It is a key way for more people to be consistently active in their daily lives, improving the quality of life. Active transportation is one of the most cost-effective ways for an individual to become more physically active and remain healthy in the long-term.

Investments in active transportation infrastructure yield positive outcomes, for example, efficient transportation operation, improved air quality, reduced contributions to climate change, improved vibrancy and livability, vehicle operational cost saving, reduced congestion, and more.

 

Reasons that people give for not walking or cycling usually involve poor weather, safety concerns, a lack of sidewalks and cycling facilities, time pressures, and a lack of secure bicycle parking. Local governments have a crucial role and expertise with design and land use strategies to overcome these challenges.

 

In many recent years, various data sources detecting the movement of active transportation users and their activities have been implemented to understand travel behaviour. In a big data era, it became much feasible to estimate and predict travel behaviour to make a better transport plan. This special issue tries to compile high-quality research papers to contribute to the active transport area.

The objective of this Special Issue is to bring together state-of-the-art research contributions that address challenges in contemporary data pre and post processing, data management, data fusion, data driven AI applications, extensibility of data application in the active transport field. 

The special issue encourages the authors to contribute submissions from a broad range of research fields related to the recent active transport data to many practitioners and academics as followings

  • Transportation planning and design
  • Community land use and design
  • Safety concerns for walking and biking
  • First and last mile accessibility
  • Active transport lifelong experience
  • Active transport with health implications
  • Shared mobility(dockless bike, stationary bikes, electric scooter) implementation
  • Special treatments for active transport
  • A relationship between public transport and active transportation
  • Pedestrian travel behavior and walking pattern
  • Elderly mobility

New TUPA in Korea starts

New TUPA has just started with 6 members today in KNU. Our team is small and not yet strong as we just started but will be getting stronger in research and team sprite. Thank you for trusting me in paving the ways we go together. Let’s bring it on and make something big happen together guys!!!

2021 TRB results

This year, only one paper had been submitted from TUPA and it was accepted.

The topic is “Explore the Applicability of Shared Streets with Virtual Reality Technology” by Xiaojian(Vannesa) Hu, Taeho Oh, Inhi Kim and Xiaojian Hu(from SEU). 

This manuscript was prepared by my Master student, Vannesa. She proves we can always make it no matter which position you are now. 

TUPA will keep encourage master and even bachelor students to try such a prestigious conference like TRB in the future. 

Well done Vannesa and Taeho!!!

https://www.dropbox.com/s/ysl7ryl5fnvxxxd/TRB2021.pdf?dl=0

Good bye Monash

I had great time at Monash with my fantastic colleagues for 6 years. I cannot forgot what you have done to me. I have been formed by your great help. I am going to miss you all. Thanks and take care till we meet again.