I would like to thank the TRB Committee on Artificial <strong>In</strong>telligence and AdvancedComputing Applications for allowing me to participate in this Commemorative Sessiondedicated to Pr<strong>of</strong>. Shinya Kikuchi. It is an honor for me to express the entire EuroWorking Group on Transportation, and my heartfelt personal thanks for the teachingwhich Pr<strong>of</strong>. Kikuchi gave us in such a friendly fashion, during the years <strong>of</strong> our fruitfulcollaboration.For many <strong>of</strong> us, he was a shining example, from both human and pr<strong>of</strong>essional points<strong>of</strong> view, and he fired much <strong>of</strong> our work with his decisive and stimulating enthusiasm.Many members <strong>of</strong> our group working on s<strong>of</strong>t computing in the transportation sectorpr<strong>of</strong>ited by the advice, cooperation and constant stimuli which he always gave sogenerously. He was able to make even the most complex problems simple: what wasfascinating and attractive to him became the same for us, as he transmitted hisenthusiasm for research and extended his humanity to all those who were fortunateenough to know him well.To give an example <strong>of</strong> the contribution given by Pr<strong>of</strong>. Kikuchi, I remember the recentwords <strong>of</strong> Michele Ottomanelli, in occasion <strong>of</strong> the opening <strong>of</strong> the Special Session onEmerging Theories and Applications in Transportation Science <strong>of</strong> the 17th Online WorldConference on S<strong>of</strong>t Computing in <strong>In</strong>dustrial Applications, dedicated to Pr<strong>of</strong>. Kikuchi:“The value <strong>of</strong> the person and <strong>of</strong> the scientist can be summarized in the fact that most <strong>of</strong>the authors <strong>of</strong> the papers accepted in this session worked or collaborated with him andwere linked by deep friendship as well. We can honestly say that this session couldn’thave taken place without his pioneering research and propulsion to share ideas anddiscussion”.My friend and colleague Mauro Dell’Orco <strong>of</strong> the Bari Politecnico has asked me to notehere the essential contribution made by Pr<strong>of</strong>. Kikuchi in organizing the Euro WorkingGroup on Transportation Meetings in Bari, Italy, in 2002 and 2006. Pr<strong>of</strong>. Kikuchiconstantly flanked Mauro in his difficult task, contributing to the great success <strong>of</strong> theConferences.Personally, I remember with great pleasure the lesson Pr<strong>of</strong>. Kikuchi gave during the2009 Euro Working Group Meeting in Padova on “The Analysis <strong>of</strong> Uncertainty in theStudy <strong>of</strong> Transportation: The Possibilistic Perspective”, and during the seminar on“Advances in Uncertainty Treatment in Transportation System Analysis”, organizedduring his last visit to Padova in September 2011.It was on that occasion that I was also able to meet his wife Laura, and my colleaguesand I spent some pleasant moments with them during our visit to Verona. I would liketo take this opportunity <strong>of</strong> sending her my affectionate good wishes.I would like to conclude this brief memory by expressing once again, on behalf <strong>of</strong> theEWGT members and <strong>of</strong> myself, our deep gratitude for his lessons, for his dedication toresearch and for his teaching, which inspire and will continue to inspire us during ourdaily work. Thank you, Shinya.Riccardo Rossi, Ph.D.<strong>University</strong> <strong>of</strong> Padova, ItalyPr<strong>of</strong>essor Shinya Kikuchi was one <strong>of</strong> the pioneers on application <strong>of</strong> S<strong>of</strong>t Computing inthe field <strong>of</strong> Transportation Engineering.I met him during my post-doctoral research at USA. He was host <strong>of</strong> me at NorthernVirginia Center <strong>of</strong> Virginia Tech in 2006. I worked with him for 6 months. This periodwas one <strong>of</strong> the best time that I have ever passed in my life.I learned many things about s<strong>of</strong>t computing, fuzzy optimization and related issuesfrom him. He had a large scale vision and capacity. He was always supportive andenthusiastic. He encouraged me about my research subjects during my stay at VT. Hehad an ability to evaluate the research subjects in many and different points <strong>of</strong> view.<strong>In</strong> spite <strong>of</strong> his age and health problems he was working very hard and enthusiastically.He had liked to participate and organize the meetings especially TRB, ISTTT, EWGTand etc. He liked to meet the researchers to each other in the world. I met manyresearchers by this way.Besides his scientific capacity, he was very kind and sensitive person and a realgentlemen. He had cared about personal relations. He had liked to send postcards tohis friends in the world while he was travelling.I will always remember him both his scientific capacity and his sensitive personality. Ibelieve that many young researchers will inspire new scientific works from hisresearch and ideas.Rest in peace, respectable Pr<strong>of</strong>essor. Transport Researchers will miss you…Yetis Sazi Murat, Ph.D.Panukkale <strong>University</strong>, Turkey20Lastly, I would also like to recall the great contribution Pr<strong>of</strong>. Kikuchi gave towardenhancing the knowledge <strong>of</strong> young researchers, shown by his fond attachment to theHelsinki Summer School and his willingness to allow young students to work in hislaboratory. During the six months which Gregorio, my PhD student, spent at VirginiaTech, he still recalls Pr<strong>of</strong>. Kikuchi's teaching, and his courtesy and humanity.21
22I write this on 8 th January, coincidentally, exactly 15 years to the day that I came to visitShinya for a 3 month stay at the <strong>University</strong> <strong>of</strong> Delaware. While most probably knew Pr<strong>of</strong>Kikuchi for his work on all things AI, we had first met through his pioneering work oncar-following, fuzzy decision making, and instrumented vehicle experiments (he was one<strong>of</strong> the few in the 90s to construct and use one purely to study traffic engineering issues).Shinya proved to be an ideal host (with a rather ‘English’ sense <strong>of</strong> humour!) and alwaysinterested in the view points <strong>of</strong> others no matter how crazy they seemed, while also veryunderstanding <strong>of</strong> the practical difficulties that one has when living away from family foran extended time. That brief but important visit marked the start <strong>of</strong> a purple patch in mycareer, that I am sure would not have happened without his encouragement andenthusiasm.Since that visit we met up at TRB virtually every year, usually over a meal at a(seemingly) randomly chosen venue – which was always an adventure (… inedible <strong>In</strong>dianBuffets, and managing to lose several cars full <strong>of</strong> students while breaking our trip back toNewark at the labyrinthine IKEA outside <strong>of</strong> Baltimore spring to mind). <strong>In</strong>deed TRBalways seemed to hold some manner <strong>of</strong> adventure with Shinya – I believe he was evenheld up at gunpoint on Calvert St in the early 90s (although with his sense <strong>of</strong> humour Iwas never sure if that actually happened!). Sadly, in the last 5 years, we saw each otherless and less, and even missed each other entirely last year due to his illness. I’m given tounderstand that TRB may move to a new venue in a few years and strangely, I welcomethis as, to me, TRB at the Hilton will always be associated with Shinya, and won’t be thesame.Mark Brackstone<strong>University</strong> <strong>of</strong> Southampton, UKShinya and I go back to 1988 when I began studying at Penn. He was at the nearby<strong>University</strong> <strong>of</strong> Delaware and visited frequently. We both had the same dissertationsupervisor, Pr<strong>of</strong>. Vukan Vuchic, but Shinya finished way back in 1974. We have bothgone on to work on a variety <strong>of</strong> subjects but I think public transportation remained thefirst love <strong>of</strong> us both. So having the love <strong>of</strong> the same subject and the same supervisorwas our inner bond.Shinya regularly showed me his work in fuzzy logic and some recent interesting workon sound reasoning and decision making in light <strong>of</strong> incomplete information.Unfortunately, he isn't here this year to present it. While I like to think I know a lotabout transportation performance and investment analysis, he made it clear to me thatthere is still a lot I need to learn. <strong>In</strong>deed, some <strong>of</strong> his recent work will be incorporatedinto the second edition <strong>of</strong> a textbook.But what I most want to mention is the Finland connection. When there was a recentretirement at Aalto <strong>University</strong> he gave a strong recommendation for me to be a visitingpr<strong>of</strong>essor. Without this, I probably wouldn't have gotten the appointment. My parentswere both immigrants from Finland and this has been a great opportunity to reconnectwith my roots. For this, I am eternally grateful to Shinya.Eric Bruun, Ph.D.Aalto <strong>University</strong>, FinlandShinya and I were members <strong>of</strong> the Transportation Systems Engineering group in theDepartment <strong>of</strong> Civil & Environmental Engineering at the <strong>University</strong> <strong>of</strong> Delawarefrom 1990 to 2005. <strong>In</strong> 2005 he left for Virginia Tech as a distinguished faculty.During the 15 years, we worked together building a strong graduate program inTransportation. Shinya loved Transportation. But he was also passionate aboutFuzzy Set and Uncertainty theories. He was one <strong>of</strong> the first (if not the first)researchers to apply Fuzzy Set theory to different problems in Transportation. Hebecame fully involved and engaged in many national and international organizationswho did work in this area. With my background in Probability Theory, he and I hadmany lively discussions/arguments. Almost every time we started comparing themathematical efficacy <strong>of</strong> Fuzzy Set theory as compared with Probability theory, butended with philosophical questions about god, creation, evolution and other spiritualissues. As is customary in academia, he and I didn’t always see everything eye toeye, but at the same time we never lost communication and remained colleagues andfriends until the end. There are many things I’ll miss about Shinya – our ping ponggames, lunches and dinners with our respective families, our travels together, and,his rigorous pr<strong>of</strong>essional and academic standards that he left for us in Delaware. Hewas a valued member <strong>of</strong> our community, and will be missed by great many <strong>of</strong> hisformer students and colleagues.Respectfully submitted;Arde Faghri, Pr<strong>of</strong>essor<strong>University</strong> <strong>of</strong> Delaware, USAWhile I was a graduate student at Virginia Tech, my Ph.D. advisor Pr<strong>of</strong>essor DusanTeodorovic introduced me to Pr<strong>of</strong>essor Shinya Kikuchi (who was then at <strong>University</strong> <strong>of</strong>Delaware). Since then I have interacted with Dr. Kikuchi on numerous occasions. Hewas the chair <strong>of</strong> TRB’s AI committee in which I was a member. His pleasant andhumble demeanor set the tone for our committee meetings. He also had a great sense<strong>of</strong> humor, which was evident in his polite appeals for paper review volunteers. I alsointeracted with him about his research and teaching activities at Virginia Tech. Therewere many occasions in which I sought his advice and he was more than willing toshare his wisdom.It goes without saying that Dr. Kikuchi has made numerous high impact contributionsto the field <strong>of</strong> artificial intelligence applications in transportation, especially in FuzzyLogic. Many <strong>of</strong> us in the AI community, me included, have directly benefited from hiswork. The impact <strong>of</strong> his research spanned several transportation domains includingplanning, traffic operations, and public transportation, to name a few.We will not only miss an esteemed senior colleague who served our pr<strong>of</strong>ession wellbut also a great friend.Praveen Edara<strong>University</strong> <strong>of</strong> Missouri-Columbia23