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…

2025.11.09-11.14　Jiang Kunzhi + Lin Huangyi This survey aims to explore the interaction between Soviet culture and Islamic culture within the urban space of western Tashkent, with a particular focus on whether this cultural layering has given rise to region-specific lighting approaches and expressions of the luminous environment. Therefore, a systematic field survey and documentation were carried out across the urban areas of Tashkent. As the capital of Uzbekistan, Tashkent reflects both Soviet modernism and Islamic architectural traditions. The city features large Soviet-era public buildings alongside religious architecture that blends tradition and modernity. In addition to above-ground buildings, this survey also examined the Tashkent Metro, Central Asia’s first metro system opened in 1977, where refined lighting and rich materials create museum-like underground spaces. (Jiang Kunzhi) ■Aerial night view of Tashkent Viewed from the TV Tower, Tashkent’s nightscape appears as a network of “lines” and “points” rather than a continuous illuminated façade. The road system forms the clearest visual structure: main roads and ring roads read as linear light bands, while bridges and major intersections appear as brighter nodes, creating a legible traffic framework over the city’s flat skyline. These linear elements strongly define the city’s sense of direction and scale. In contrast, most buildings remain dark at night, with their presence defined only by entrance lighting, limited window glow, and reflected ambient light. As a result, the overall background luminance stays low, allowing a few landmarks—such as tall structures or media…

City Survey in Qatar/Azerbaijan 2018/02/12-02/17　　Masahiro Iwata + Hikaru Kimura We went to Qatar and Azerbaijan from 12th to 17th February for 6 days for lighting survey. Both of countries are oil producers, and have been developed with oil money. Qatar and Azerbaijan are located on similar longitude, however each urban landscape has been developed in different ways according to their history. Qatar is an emergent country, which benefits from oil money. High-rise buildings has been built on vacant huge desert, and the gulf coast has been developed for attracting wealthy class in around the world. On the other hand, Azerbaijan still faces a problem which a lots of refugees by the past war have hard lives, even it is in bubble boom and it benefits from oil money as much as Qatar. They have redeveloped the old town, which is world heritage. We surveyed lighting in these two countries, where electricity expenses are free by benefit of oil money. Sketch of the road lighting ■Qatar, Capital city Doha Doha used to be described as “the most boring city in the world”, where there were no accommodation and entertainment facilities according to its closed policy. Today luxury hotels and huge shopping malls has been built, and it has become a bustling city. There are lots of buildings painted the current president’s face on the façade. These buildings are by pocket money of president or owned by the government. The buildings along…

The Paris nightscape has become a model for nightscapes around the world. Appreciation for the streets of Paris has helped to preserve and restore them to places of beauty during the day and at night. At night, the streets emerge as distinct axes of light and one wonders how far urban light planning will progress. Illuminated in white light, the La Grande Arche, gives the impression of a modern-day city. Set against a dark background, the lofty figure of the Eiffel Tower glows impressively. Looking towards Montparnasse from the top of the Eiffel Tower. The bright building in the center is Montparnasse Tower.

City Night Survey : Saitama-Shintoshin 2019.04.11　　Lin Hu + Hikaru Kimura Saitama Shintoshin is a district established around the year 2000. Centered on JR Saitama-Shintoshin Station, it is an intensively structured urban area featuring a variety of functions, including large-scale commercial facilities, a major multi-purpose arena, government office complexes, and hospitals. This survey examined how this planned city has evolved from the perspective of lighting. Nightscape over the heliport from the Saitama Government Office Complex Light Linking Spaces A pedestrian walkway system is installed around Saitama-Shintoshin Station, utilizing an active pedestrian-vehicle separation plan that allows for smooth circulation from the second-floor station gates to various facilities. While the ground level is brightly illuminated by roadway pole lights, the pedestrian walkways feature lower-level lighting such as uplights and footlights—excluding some decorative pole lights in park areas—creating distinct expressions of light for each zone.Saitama-Shintoshin Station is connected to Kita-Yono Station by a walkway spanning approximately 600m. A continuous cantilevered glass canopy allows pedestrians to walk without getting wet in the rain or being stopped by traffic signals. Along this route, there is a straight path of about 100m running parallel to the railway tracks. Here, despite the cantilevered canopy structures being identical—likely due to differing construction phases—the lighting techniques varied across three distinct types. Although the architectural design is similar, the change in lighting methods results in varying levels of brightness depending on the location. While achieving uniformity may seem important, using different…