Class of 65: Rock On is a magical trip back to a time when life seemed less complicated and more carefree. The sixties were so magical that we dared to believe the impossible dream that tomorrow would be better than today. We even dreamed about building a more perfect society. We were on a quest to fulfill the nations birthright and we were nave enough to believe that we could overcome any obstacles in our path. Even after President Kennedys death, we were unable to let the dream die. My story is a fictional account of a group of kids from a small town in Wisconsin completing their senior year of high school in 1965. They were coming of age during a decade of turmoil and unrest. President Kennedys assassination, the civil rights movement, and the growing war in Vietnam were the events changing the nation. They lived in a place that was isolated from the headlines which were gripping the attention of the nation. They realized the world was changing; however, they were committed to making their final year of high school something they would remember for the rest of their lives. The spirit of the sixties they embraced was found in the music they listened to, the products they bought, and the movies they watched. Their focus was a love affair with being young. They were the generation with a new explanation. They were convinced that time was on their side and that it was endless. They needed a lot of time to complete their bold experiment to change the world.

"Class of 65: Rock On" is a magical trip back to a time when life seemed less complicated and more carefree. The sixties were so magical that we dared to believe the impossible dream that tomorrow would be better than today. We even dreamed about building a more perfect society. We were on a quest to fulfill the nation's birthright and we were naïve enough to believe that we could overcome any obstacles in our path. Even after President Kennedy's death, we were unable to let the dream die. My story is a fictional account of a group of kids from a small town in Wisconsin completing their senior year of high school in 1965. They were coming of age during a decade of turmoil and unrest. President Kennedy's assassination, the civil rights movement, and the growing war in Vietnam were the events changing the nation. They lived in a place that was isolated from the headlines which were gripping the attention of the nation. They realized the world was changing; however, they were committed to making their final year of high school something they would remember for the rest of their lives. The spirit of the sixties they embraced was found in the music they listened to, the products they bought, and the movies they watched. Their focus was a love affair with being young. They were the generation with a new explanation. They were convinced that time was on their side and that it was endless. They needed a lot of time to complete their bold experiment to change the world.

Expanding Underground - Knowledge and Passion to Make a Positive Impact on the World contains the contributions presented at the ITA-AITES World Tunnel Congress 2023 (Athens, Greece, 12 – 18 May, 2023). Tunnels and underground space are a predominant engineering practice that can provide sustainable, cost-efficient and environmentally friendly solutions to the ever-growing needs of modern societies. This underground expansion in more diverse and challenging infrastructure types or to novel underground uses can foster the changes needed. At the same time, the tunneling and underground space community needs to be better prepared and equipped with knowledge, tools and experience, to deal with the prevailing conditions, to successfully challenge and overcome adversities on this path. The papers in this book aim at contributing to the analysis of challenging conditions, the presentation and dissemination good practices, the introduction of new concepts, new tools and innovative elements that can help engineers and all stakeholders to reach their end goals. Expanding Underground - Knowledge and Passion to Make a Positive Impact on the World covers a wide range of aspects and topics related to the whole chain of the construction and operation of underground structures: Knowledge and Passion to Expand Underground for Sustainability and Resilience Geological, Geotechnical Site Investigation and Ground Characterization Planning and Designing of Tunnels and Underground Structures Mechanised Tunnelling and Microtunnelling Conventional Tunnelling, Drill-and-Blast Applications Tunnelling in Challenging Conditions - Case Histories and Lessons Learned Innovation, Robotics and Automation BIM, Big Data and Machine Learning Applications in Tunnelling Safety, Risk and Operation of Underground Infrastructure, and Contractual Practices, Insurance and Project Management The book is a must-have reference for all professionals and stakeholders involved in tunneling and underground space development projects.