Shimokitazawa is a neighborhood of small shopping streets and alleyways, projecting a strange, but comfortable atmosphere, as people crowd the backstreets until late in the night. However, plans to replace this quaint neighborhood with arterial roads and high-rises are underway. The detectives took what maybe a last chance to survey this area before it is “defaced.” The top half and rooftops of most buildings do not have any luminous signage. As a result, a bird’s eye view of this neighborhood is actually fairly dark. The station front plaza is filled with people listening to music from sidewalk acts or looking at street art. The crowds of people naturally overflow into a nearby street. If an arterial road is planned for this area, this atmosphere will be lost forever. Two streets back-to-back, but built to two different scales and with two different demeanors. On the left is Shimokitazawa`s main south entrance shopping street. With many interior decor shops, the lighting is bright and color temperature is high. One street inside and the atmosphere and lighting are more relaxed. Low color temperature, incandescent lamps from restaurants, cafes, and bars are the main source of light.

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…

The Television Broadcasting Tower looks down on the orange sodium lamps overflowing from the grid patterned streets of Sapporo. While on assignment in December we were able to view the multi-colored White Illumination set up along Ohdori Park and Sappore Eki Mae Street. Looking towards Ohdori Promenade from the JR Tower. Sapporo is a beautiful city at twilight with orange light from the streets to set off the blue-tinted snow-topped roofs. The tree-lined street, Sapporo Ekimae Avenue is a sight to see with its unique style of looping lights over tree branches. Visitors with cameras and mobile phones converge on the decorated Ohdori Promenade. Sapporo Television Tower, similar to Tokyo Tower and Nagoya Tower, and all designed by the same architect, is also illuminated with the same type of sodium lamp.

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…

2023.01.20-01.22　Yuichi Anzai+ Chuanyi Liu　 ■Kozushima Village Kozushima is located about 180 kilometers south of central Tokyo with a population of about 1,800. The terrain is complex, with almost no flat land. The village is located in the center of the island at the foot of Mt. Tenjo. The impetus for the starry sky protection activities on Kozushima came from a comment made during a student internship program by the Tourism Foundation in 2016, that the night sky was as beautiful as a planetarium. The starry sky, a common sight on the island, has become a tourism resource. An island-wide effort to protect the sky began. Specific efforts include replacing streetlights and security lights with fixtures with 0% upward luminous flux and 2,700K color temperature, holding explanatory meetings for residents and regular workshops with experts to gain their understanding and cooperation in light pollution and starry sky protection activities, training islanders as guides, and holding star gazing events to protect the night sky from light pollution and communicate the appeal of the starry sky both on and off the island. The island is also working to protect the night sky from light pollution and convey the charm of the starry sky to the public. The “Light Pollution Prevention Ordinance to Protect the Beautiful Starry Sky of Kozushima Village,” which specifies the responsibilities of residents and businesses to prevent light pollution, will be enacted in 2019, and rules are being developed to…