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…

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.

In front of the main gate to Senso-ji Shrine lies the neighborhood of Asakusa. One of Tokyo’s most popular entertainment districts, Asakusa flourished with kabuki, opera, and comic storytelling from the Meiji Era to the end of WWII. The Lighting Detectives discovered a variety of decorative streetlights and a lighting atmosphere fitting for this lively cultural destination. Upon entering the famous Kaminarimon, the Nakamise approach proceeds towards the shrine with bright-white, fluorescent-tube illuminated signage lining both sides. After navigating this corridor, walls of softly glowing lanterns come into view. The lanterns once lit with fire were replaced with incandescent bulbs and now fluorescent lamps. In popular neighborhoods like Shibuya or Roppongi, architectural facade lighting or neon signage fills the vertical space and “street lighting” is virtually non-existent. However, a variety of decorative streetlights festively illuminate the streets of Asakusa for a very fitting lighting environment. Pub signage and lanterns dispersed along the dark streets of Asakusa create an uncanny charm in this neighborhood. Roadway lux levels are a fairly dim 10-16 lx, but the red lanterns hanging from the eaves of establishments dig up affection for this old town.

Roppongi has many faces including, an entertainment district with a foreign twist, new offices for daily business, and is developing as a center for the Tokyo art scene. The Lighting Detectives sped around on their bikes in April to discover what kind of light exists in this multi-functional area. The presence of the entertainment district is strongly felt at Roppongi intersection. Most people recognize this intersection as the center of Roppongi, but in recent years new development has created two new areas of focus, leaving the center of Roppongi very ambiguous. Points of reference include Mori Tower, Midtown Tower, Tokyo Tower and the metropolitan expressway, that cuts through, dividing this area of Tokyo. Large-scale luminous signage and a collage of other miscellaneous lighting dominate the view. Looking toward Roppongi from Aoyama Cemetery. The 3 towers that stand pronounced over Roppongi are a product of power and force, but appear alien in this setting. The towers look close and, yet, far off, as this scene can play tricks on your eyes.

2023.01.26-01.29　Masafumi Yamamoto + Yuki Ito　 Okinawa is a place where diverse cultures and histories are intertwined. In Okinawa, each region has its own unique streetscape, and this is due to the fact that each region has a completely different historical background. The following is a simplified explanation of the historical background of each area. The Naha area was severely damaged in the war and was rebuilt; the Koza area was influenced by the U.S. military base and retains a strong American culture; and the Bise and Imadomari areas retain the traditional streets of the Ryukyu Islands. By comparing the light environment of each area, this survey sought to determine what kind of lifestyle culture and light features each area has, and what kind of light is unique to Okinawa. ■Sakae-machi MarketSakae-machi Market, located in Naha City, is a shopping street that was established during the postwar reconstruction period and has remained almost unchanged since then. Today, the market is a lively place where locals gather during the daytime, but at night it transforms into a more local haunt, drinking district that is quite different from the impression it gives during the daytime. The only light at night is from the taverns and the faint fluorescent lights in the upper part of the shopping street. (Floor illumination: approx. 20 lx) The illuminance alone gives the impression of dimness, but the actual atmosphere was not as dark as the impression given by…