2025.09.04-09.08 Yonglin Ke + Masashi Kurobe The nights in Honolulu are a diverse blend of resort illumination, residential lights, torches, and night market glows. However, as the city develops, the starry sky is fading, raising concerns about the impact on the local ecosystem. Balancing urban growth with light pollution countermeasures remains a significant challenge. We conducted an on-site night walk survey to explore the balance between the city and nature and to evaluate the current lighting environment. ■Honolulu Honolulu, the capital of the U.S. state of Hawaii, is a prominent tourist destination in the heart of the Pacific Ocean. Simultaneously, it serves as the political and economic hub of the state. In this land where the sea, mountains, and urban areas sit in close proximity, the nightscape reveals a variety of expressions depending on the time and location—blending the glow of resort hotels, the soft lights of residences, traditional fire torches, and the vibrant lights of night markets. Furthermore, the combination of intense sunlight and a tropical climate creates a unique character within the city’s lighting environment. On the other hand, urban development and the growth of the tourism industry have negatively impacted the visibility of the starry sky and affected local ecosystems, such as migratory birds and sea turtles. While the state and city have begun implementing measures to reduce light pollution, finding a balance with the tourism industry remains a challenge. During this night walk survey, we investigated…

2025.06.26 Yumi Honda +Qiaoxi Wang+ Momoe Nomura We observed and recorded the nighttime light environment of the newly developed commercial complex Senkyaku Banrai in the Tokyo Bay Area and its surrounding public spaces (green plaza, station area, and Gururi Park). We conducted a multifaceted analysis, including the placement of lighting fixtures, illuminance, and the impression of the space, to determine how light affects the atmosphere of the facility and the city in the Toyosu area, which is being developed as a tourist hub. The Toyosu area is a point of interest where the latest urban spaces and the lively atmosphere of shitamachi (old downtown) coexist due to redevelopment. We walked through the area around Toyosu Market Station, the green plaza, and Gururi Park, observing how light design impacts the impression, comfort, and safety of the town. ■Senkyaku Banrai Senkyaku Banrai is a commercial facility that opened in 2024 next to the Toyosu Market. It’s a spot where both tourists and local residents can enjoy the array of restaurants and souvenir shops. Through architecture and lighting design incorporating traditional Japanese motifs, it exudes a uniquely Japanese warmth and vitality, even within the contemporary urban nightscape. The lighting plan inside the facility is unified, as befitting a new commercial complex, and was designed with both aesthetic appeal and functionality in mind. The main path lighting uses warm, incandescent colors, creating a nostalgic atmosphere reminiscent of a Showa-era shopping street. This fosters a…

2024.05.16 – 05.19 Mari Kubota+ Noriko Higashi Busan, South Korea’s second-largest city, is one of the world’s major port cities. In recent years, it has also gained fame as a hub for tourism and film. We surveyed the lighting in Busan, which is also a member of LUCI (Lighting Urban Community International). South Korea is a close neighbor, just 1.5 hours from Tokyo by plane, making it a popular destination for quick and affordable trips. Busan, the second-largest city in South Korea, is not only a tourist destination but also a major port and an entertainment center, hosting film festivals. As a member of LUCI, Busan has been focusing on urban lighting as part of its urban planning. In 2015, the city developed an extensive overview of its nightscapes, resulting in the Busan Urban Light Policy for 2030. This policy has been updated several times, reflecting the city’s ongoing efforts in implementation and improvement. The guidelines divide Busan into several zones, each with lighting tailored to its specific characteristics.We traveled to Busan to assess whether the city’s lighting contributes to safety, beauty, attractiveness, and the local economy at night. ■Jagalchi Market Jagalchi Market is South Korea’s largest seafood market, selling both fresh and dried fish. After purchasing seafood on the first floor, visitors can have it cooked and served on the second floor. The market attracts many tourists. White lights are used to illuminate the seafood, making it look as…

City Night Survey- Chiang Mai Lantern Festival 2023.11.25 – 11.29 Angkana Kongchatri (Tan)+Momoko Muraoka Chiang Mai is the second largest city in Thailand which has special atmosphere tracing from Lannar kingdom period. Tan from Bangkok and Momoko from Tokyo traveled to the city for a survey. ■Back ground of the survey The lantern festival in Chiang Mai has been getting very high attention from international tourists since a couple of decades ago. Due to its visual appeal, the festival has become an explosively hot tourist spot and activity. As number of tourists raise up, the negative side of the festival also becoming a serious issue, such as the risks of fire and abandoned trashes which cause suffering to local people. In this SNS era, the speed and frequency of exchanging information has become extremely heavy than ever. When very local culture gets intensive attention from unidentified crowds, then the one to retain the culture need to face and respond the troubles to come with the anonymous attention which is also happening on the lantern festival in Chiang Mai. Festivals with lights are attractive. However, overlooking the wastes happening materially and culturally cannot be accepted anymore. Through this survey, we aim to observe not only the bright side but also the problems and struggles behind which could relate with many other traditional lighting festivals. We believe that the approach could bring another layer of depth for the lighting detective activity with…

Shiodome Sio-Site was a joint public and private sector redevelopment project completed in 2006. In nearby Shinbashi, eateries and bars built under and into the brick structure of the elevated railway tracks during the Meiji era have become a famous cityscape of this area. We set out to discover what kind of lighting environment exists in this conflicting neighborhood of Tokyo. Red lanterns, single light bulbs hanging under the eaves, colorful luminous signage…All the lighting is warm and inviting. The lighting environment along the streets of Shinbashi is wide and varied, but somehow closes the distance between strangers. Lighting for an elevated pedestrian deck connecting high-rise buildings in the area. The warm colored lighting creates a comfortable atmosphere for a nighttime stroll. The Shiodome high-rise buildings are not showy, and along with the interior office lighting, only a few have facade lighting on the building crowns.