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…

2025.04.19 Hikaru Kimura + Noriko Higashi When we first held a workshop in Hida Furukawa in 2023, city hall staff told us just how deeply the people of Furukawa cherish their festival. At the Hida Furukawa Festival Exhibition Hall, we were given explanations about the history of the festival and the stalls. We also had the opportunity to see the storehouses where each neighborhood keeps its stall, as well as the lantern stands placed in front of individual houses. This inspired us to head to Furukawa with the intent of exploring and documenting the festival scenes that are so important to the local people. The Furukawa Festival, held annually on April 19th and 20th, is designated as a UNESCO Intangible Cultural Heritage and a National Important Intangible Folk Cultural Asset of Japan. It’s a community-wide celebration so deeply rooted in the town’s identity that even former residents living outside the area for school or work return home specifically for the festival. The event centers around two main elements: the “Okoshi Daiko,” a ritual where a giant drum is paraded through the town and beaten throughout the night, and the “Yatai Procession,” where each neighborhood pulls its own stall through the streets. When we first visited Furukawa in April 2022 for a workshop, it happened to be just after the festival had ended. The excitement had slightly faded, and the town was in the midst of cleanup. During that time, we…

2025.01.08-01.11 Misuzu Nakamura + Sachiko Segawa Kitakyushu City was finally ranked No.1 in the latest “New Three Great Nightscapes of Japan” by the Night View Tourism Convention Bureau. The city has actively utilized its local assets—such as the industrial landscapes developed from the Yahata Steel Works, historic streetscapes, and a terrain of hills and bays—to enhance its nightscape. Surprisingly, this city had not yet been surveyed by the Lighting Detectives, so we set out to rediscover its unique allure. ■Learning What Makes a Compelling Nightscape Before beginning our survey, we visited Ms. Miki Matsushita, a lighting designer who has long been involved in Kitakyushu city’s nightscape—from formulating the nightscape guidelines for the Kokura city center to planning lighting for various facilities both in and outside the city. We visited her lighting design office in Fukuoka City, which felt as comfortable and refined as an art museum. There, we had the opportunity to hear a wide range of storie—from the time she spent developing the guidelines to her mindset as a lighting designer. One thing that left a lasting impression was her comment that guidelines shouldn’t become manuals, but rather serve as guidebooks. It became clear that her approach, rooted in deep empathy for the local community, allowed her to foster unique charm through the application of the guidelines in ways that reflect the distinct character of each area. (Misuzu Nakamura) ■Kokura Station Area: The Gateway to Kitakyushu and a Hub…

2024.11.21-11.22 Shunichi Ikeda + Yuta Shibata Yokkaichi has developed as an industrial city. The striking contrast between its dazzling factory nightscape and the increasingly organized city center stands out. We conducted a survey of the urban lighting where industry and daily life coexist. ■About Yokkaichi Yokkaichi has a long history, having developed as a port town facing Ise Bay. During the Edo period, it prospered as a post station along the Tokaido route. The city’s name originates from the markets that were held on days ending in “4.”After World War II, Yokkaichi grew as an industrial city with the construction of a petrochemical complex during Japan’s period of rapid economic growth. However, air pollutants emitted from the complex caused a serious pollution-related illness known as Yokkaichi asthma.Today, the city has regained a comfortable living environment. Residential areas, shopping streets, and everyday life now extend right alongside the industrial zones. ■3D Factory Nightscape Yokkaichi, with its history of industrial development, began drawing attention during the early 2000s factory nightscape boom. The expansive factory nightscape of the Yokkaichi petrochemical complex, which stretches about 10 kilometers north to south, is counted among Japan’s five greatest factory nightscapes. What makes it especially unique is that the nightscape can be viewed from the sky, land, and sea—earning it the nickname “3D Nightscape.” Particularly photogenic views of the factory nightscape have gained significant popularity. From the perspective of the Lighting Detectives, we conducted a survey of…

2024.9.9 Yonglin Ke + Kunzhi Jinag + Linxi Chen The brightness (luminance) of signage lighting is key to shape the overall lighting of a city. This survey conducted in Akihabara, a globally famous district, focused on the renowned Akihabara Electric Town (Chuo-dori), analyzing the evolution of the city’s lighting composition by comparing it to the survey from 19 years ago. ■Akihabara Electric TownAkihabara is the heart of electronics in Tokyo and a globally famous hub for otaku culture. While it is bustling with tourists daily, the colors of the signs, filled with anime and game culture, are much more diverse compared to upscale commercial areas like Ginza or other shopping districts. In 2020, Chiyoda Ward released guidelines for outdoor advertising and urban development, leading to changes in Akihabara’s streetscape. This survey investigates the current night view of Akihabara Electric Town, comparing it to a survey conducted 19 years ago. (Kunzhi Jiang) ■What kind of lights shape Akihabara?The main lighting elements in Akihabara’s key districts include streetlights, signage lighting, building façade lighting, and lighting from store entrances and spillover light.Compared to the picture from 19 years ago, the most noticeable green and red lights from EDION were not illuminated due to the store’s closure. The ONODEN sign is now an LED screen, and the surrounding lighting has a more subdued feel. Previously, the area behind the bridge was completely dark, but now, with the bright lighting from a drugstore’s interior and…

Lights in Izumo, Illuminating Cultural Values 2023.11.22-11.24　Masashi Kurobe+ Yuta Shibata The Izumo region has a long history and culture since the establishment of villages in the Yayoi period and the birth of Izumo Province. The Iwami region is a port town with hot springs that has existed since the Middle Ages including the town named Yunotsumachi which was developed as an outer port for the Iwami Ginzan Silver Mine, which is registered as a World Heritage site. What kind of light you can find in these two areas where rich history and culture of Shimane Prefecture remain? Can lighting enhance their cultural values? We investigated the light environment as well as the cultural background. Seven sacred straw woven cord (himorogi) are placed in a sacred space with shimenawa (sacred straw ropes) and a dragon serpent god who leads of the gods is positioned facing the sea Several floodlights illuminate the entire beach, beautiful when reflected in the waves The sign for the Kamimukae Festival just barely legible by the light of the wooden lanterns ■Introduction The towns of Izumo and Iwami Yunotsumachi in Shimane Prefecture have a long history and a variety of cultures since the birth of Izumo Province. We investigated what kind of light can be seen in the spark of the culture, as well as its historical and cultural background. This survey also made us, who have lived in cities for a long time, think about the…

2023.08.02 – 2023.08.04　Yumi Honda＋Sachiko Segawa The theme of this survey is “lighting on boats since ancient times”. Cormorant fishing on the Nishiki River in Iwakuni has been practiced for about 400 years. The Kangensai Festival at Miyajima Island has been held since the Heian period (794-1192). We investigated the relationship between water, light, and people in these two different areas. ■Iwakuni　The Light of Cormorant Fishing, an Ancient Fishing MethodCormorant fishing has been practiced on the Nishiki River in Iwakuni City, Yamaguchi Prefecture, for about 400 years. The cormorant fishing is still enjoyed today by taking a pleasure boat ride from the foot of Kintai-kyo Bridge, one of the three most famous bridges in Japan. The day we visited was a weekday in mid-summer, and the daytime crowds were sparse, but in the evening, people began to gather along from somewhere the riverbank and board the cormorant fishing boats. In western Japan in summer, it is still light even at 18:00. Looking at the sightseeing boats from the bridge, I could see people enjoying a party on the boats with lanterns hanging down. As it gradually got darker and the lights of Kintai-kyo Bridge and lanterns along the river were lit up, we slowly waited for the cormorant fishing time to start. By the time the pleasure boat landed for a break, the sun had completely set and Iwakuni-jo Castle at the top of the mountain was lit up. Finally, it…

2023.07.19　Shunichi Ikeda + Masashi Kurobe + Yuta Shibata Shinjuku Kabukicho, Japan’s largest entertainment district, is a dazzling neon-lit labyrinth filled with restaurants, movie theaters, and amusement facilities. Its streets are teeming with people all night long. In recent years, however, the district has faced challenges, such as the growing presence of “Toyoko Kids” congregating in Cine City Square and engaging in criminal activities. Despite these issues, the opening of the new iconic Tokyu Kabukicho Tower has brought renewed attention to the area. As lighting detectives, we delve into the current state of Kabuki-cho, examining its lighting environment and cultural significance. ■Kabuki-cho Reborn: A Post-COVID Entertainment DistrictSeventeen years after our lighting survey in Shinjuku in 2006, Kabuki-cho has evolved from large-scale development into a global tourist hotspot. Though deserted during the 2020 state of emergency, the area is now vibrant again with the opening of Tokyu Kabuki-cho Tower. This survey revisits Kabuki-cho, comparing it with the previous survey and analyzing its changing lighting environment. ■Tokyu Kabuki-cho Tower: An All-Out Entertainment ComplexThe Tokyu Kabuki-cho Tower, a 48-story, approximately 225-meter-tall, super high-rise entertainment complex comprising a hotel, movie theater, theater, and more, opened in April 2023.Upon entering the building, I was overwhelmed by the countless glittering lights that filled the space. The small shops and narrow corridors were adorned with an excessive number of paper lanterns, creating an atmosphere reminiscent of an Asian festival. Outside, the building’s digital signage, facade indirect lighting, reflected…

2023.01.18-01.20　　Yumi Honda ＋ Misuzu Nakamura　 Kobe is famous for the night view from Mt. Rokko as the “10 Million Dollar Nightscape” and for its waterside nightscape as a port city. Nightscape guidelines have been established in 2012, and efforts are being actively made to improve the lighting in the city. We walked around the city, which continues to be updated, and explored the components of a nightscape that is uniquely Kobe. ■“Instagrammable” NightscapePort Tower, Maritime Museum, Oriental Hotel, Hotel Okura, Ferris wheel, sightseeing boats, and the “BE KOBE” monument…. When people think of the city of Kobe, they probably think of Meriken Park. Meriken Park is the face of Kobe, and even at night many people were visiting the park to take commemorative photos. Many of the park’s symbolic monuments were lit up and color lighting was used extensively, but the colors and color schemes were mainly neutral, not primary colors, so it was nice to enjoy the colorful light without getting an overpowering impression. To complement the color lighting, the ground lights of the pole lights, handrail lights, and bollard lights were uniformly lit with light bulbs, creating a subdued brightness. Both decorative lighting and functional lighting emitted little excessive glare, allowing us to concentrate on the illuminated objects. It seemed like seeing the nightscape and taking pictures of it could be the purpose of a visit to this place. In this age of breathlessly uploaded photos and videos…

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…

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…

2022.11.10-12　Mari Kubota + Noriko Higashi In July 2020, Hitoyoshi City in Kumamoto Prefecture was devastated by catastrophic flooding caused by heavy rainfall. Since the disaster, the city has made steady efforts toward recovery— efforts in which lighting has played a significant role. To understand how lighting has contributed to the city’s revitalization, we conducted interviews with local stakeholders, including hot spring inn owners and city officials, and followed up with an on-site investigation of the actual lighting projects. From July 3 to 4, 2020, torrential rains caused the Kuma River to overflow, resulting in catastrophic flooding in Hitoyoshi City, Kumamoto Prefecture. Known for its scenic beauty, hot springs, and hospitality centered around local shochu, this tourism-driven city suffered devastating damage—not only from the flooding but also from the impact of the COVID-19 pandemic. In response to the disaster, a local inn owner launched the Hitoyoshi Hikari no Fukkō Project (Hitoyoshi Light Recovery Project), using light as a tool for recovery. In 2021, Hitoyoshi was selected as a model city for Japan’s Cabinet Office-led Super City (SC) initiative, proposing a future-oriented recovery plan. This plan placed lighting as a key component, aiming to promote both disaster resilience and tourism attraction through thoughtful illumination. This survey included interviews with stakeholders such as hot spring inn owners, city officials, and lighting designers involved in the project, examining how “light” became a central theme in the recovery process and evaluating the impact it has…

2022.10.01-10.03 Shunichi Ikeda + Genki Watanabe Koyasan (Wakayama Prefecture), a sacred site of Japanese Buddhism with a history of 1,200 years, was inscribed on the UNESCO World Heritage List in 2004 and again in 2016, and is one of the world’s most renowned religious cities. It is also a popular tourist destination, attracting many international visitors prior to the COVID-19 pandemic. Through the distinctive light environment created by the numerous temples and shrines, as well as through the experience of staying at temple lodgings (shukubō), we conducted an investigation into this extraordinary lighting culture from the perspective of the Lighting Detectives. Koyasan is a town situated in a mountain basin at an altitude of 800 meters, surrounded by peaks of around 1,000 meters in northern Wakayama Prefecture. It was founded about 1,200 years ago, in the early Heian period, by the Buddhist monk Kōbō Daishi (Kūkai) as a sacred site of Japanese Buddhism, with Danjō Garan serving as the central temple complex of this religious city.Originally, the entire area of Koyasan was considered part of the grounds of Kongōbu-ji Temple.For us, this was the first time to focus on a religious city in an urban lighting survey. We wanted to examine what the nightscape of this temple town looks like and how the lighting culture of Japan and Buddhism manifests itself in various aspects. ■Okunoin, Kongōbu-ji, Head Temple of Koyasan Shingon Buddhism Okunoin is an expansive cemetery stretching about 2…

2022.10.27　Genki Watanabe+ Chuanyi Liu+ Yuki Ito This Tokyo night walk survey took place in Shimokitazawa, a neighborhood especially popular among young people. Known as one of Tokyo’s most culturally rich districts, the area is filled with vintage clothing shops, eateries, theaters, niche cinemas, and art galleries.The Lighting Detectives previously conducted a survey here in 2009. This time, we examined how the area has changed since the Odakyu Line was relocated underground. We also focused on the newly developed Shimokita Senrogai area, which opened on May 28, 2022, assessing its lighting design and comparing it with the older shopping streets to explore the contrast between new and traditional urban atmospheres. ■Map around Shimokitazawa Station With the Odakyu Line moved underground, a new neighborhood called Shimokita Senrogai was developed between Higashi-Kitazawa Station and Setagaya-Daita Station. Driven by the desire to support the community, redevelopment progressed step-by-step while listening to local residents’ voices. The entire area officially opened on May 28, 2022.Alongside the railway line, new facilities such as daycare centers, a hot spring inn, commercial spaces, student dormitories, and event venues were established. ■Development of Shimokita Senrogai The Shimokita Senrogai area we surveyed is a newly developed space created by moving the Odakyu Line underground. It was designed with the intention of reconnecting the northern and southern parts of the neighborhood that had previously been divided by the railway tracks, resulting in developments that encourage smooth pedestrian circulation throughout. The development features…

2022.06.28　Kouki Iwanaga+ Xiaoyi Dong+ Hikaru Kawata Yokohama Minato Mirai, which has seen rapid development in recent years with projects such as Japan’s first urban circulation ropeway “YOKOHAMA AIR CABIN” launched last spring, the cruise ship terminal “Yokohama Hammerhead,” and the prestigious Hawaiian luxury resort “The Kahala Hotel & Resort Yokohama.” The purpose was supposed to be to investigate whether the “nightscape of Minato Mirai,” which could be considered a tourism resource in itself, has been well preserved… but. ■Relationship Between Zoning and Street Lighting The Minato Mirai area, which was developed on reclaimed land around Yokohama Port, can be broadly divided into three zones: the “Central District,” the “Shinko District,” and the “Yokohama Station East Exit District.” Among these, our survey focused on the Central District—with its high-rise buildings such as Landmark Tower and Queen’s Square Towers—and the Shinko District, which features many commercial and cultural facilities such as the Red Brick Warehouse and Yokohama Hammerhead. When examining the street lighting in these two districts, it was found that the streets running parallel to the Rinko trunk road and the Metropolitan Expressway were lit with sodium-colored lamps, while the streets leading toward the port, such as Icho Street and Keyaki Street, were illuminated with streetlights at a color temperature of 4000–5000K. At first glance, this color temperature plan, which changes according to the direction of the streets, appears well-organized. However, according to the building color scheme guidelines for the Minato…

2022.11.4-5 Sachiko Segawa Surprisingly, this survey of the Sawara district marks the first time the Lighting Detectives have conducted an investigation within Chiba Prefecture. The team focused on an area designated both as an Important Preservation District for Groups of Traditional Buildings and as a Landscape Formation District. Here, the townscape of merchant houses, which flourished from the Edo period thanks to river transport on the Tone River, still remains. Located about 70 km from Tokyo Station and slightly inland from the Tone River, the Sawara district of Katori City once thrived as a merchant town, to the point it was said to rival Edo itself. However, the town declined during Japan’s period of rapid economic growth. Following a townscape survey in 1974, the value of its historic scenery was reappraised. Today, leveraging its convenient location—just two hours from Tokyo and one hour by train from Narita Airport—the area is being redeveloped as a tourist destination. For this survey, the team limited their scope to the townscape along the Ono River and conducted a nightscape survey. ■Uniquely Designed Lighting Fixtures From JR Narita Line Sawara Station, as we walked toward the Ono River, we were greeted by a bollard topped with a monkey. “Why a monkey…?” we wondered, but as we continued upstream along the river, we encountered bollards adorned with all sorts of figures: rabbits, carp, children, frogs, Ebisu, and more—each one different, with no two alike. These uniquely…

2022.09.30-10.02　Momoko Muraoka + Hikaru Kimura + Akemi Sasamoto Squid, the local specialty of Tsushima, are caught at night. The view of fishing fire illuminating the horizon is not a planned lighting environment, but a nightscape that naturally emerges from the livelihood of local fishermen.To explore this scenery of “light from daily life,” we visited Tsushima and boarded a fishing boat to experience night fishing. Under a sky full of stars, we documented the striking contrast between the vast shadowed sea and the line of fishing fires along the horizon.The interplay of starlight, fishing fire, and their faint reflections on the water revealed a beauty entirely different from that of urban lighting design. Through this survey, we were able to appreciate not only the outcome of the fishing itself, but also how light is deeply intertwined with the culture and daily life of the region. ■Boarding the Squid Fishing Boat Night fishing with lights (called “yodaki”) is a traditional fishing method that makes use of the phototactic nature of fish—their instinct to gather toward light. Its origin dates back to ancient times, and while the light sources themselves have changed over the centuries, the practice of kindling lights at sea remains the same. The nightscape of fishing fires has thus continued as a scenery born from the daily livelihood of local fishermen. That this night view is cherished as a distinctive landscape of the region is evident from the existence of…

2022.07.11　Hikaru Kimura + Yonglin Ke + Xueying Piao Shibuya, known as a youth hub, began redevelopment in 2012, transforming into a business district with a cluster of new office buildings and commercial facilities. While many new restaurants have emerged, traditional drinking alleys remain intact. This survey investigates the contrasting night scenes of the new and old Shibuya. ■Overlooking Nightscape of ShibuyaFrom the Shibuya Scramble Square, the rooftop of Miyashita Park stands out prominently to the east of the central railway tracks. The warm glow along the podium belongs to Shibuya Yokocho (alley). Nestled beside the pitch-black railway tracks and appearing as a dotted red line is Nonbei Yokocho. Viewed from above, Nonbei Yokocho exuded a soft, flickering light, resembling candles, in contrast to the lively and vibrant atmosphere of Shibuya Yokocho.The overall nightscape, divided by the Yamanote Line tracks, presents a striking contrast: the western side is dominated by tall buildings, densely packed with billboards and advertisements, exuding the lively energy of a traditional entertainment district. The eastern side, on the other hand, has fewer billboards and subdued signage, giving it a unified and calm appearance.I wonder if Shibuya will eventually become a more standardized urban landscape, much like its eastern side. Personally, I felt the bustling, nostalgic charm of the western side embodies the true spirit of Shibuya, and it’s something worth preserving. (Yonglin Ke) ■Shibuya YokochoRAYARD MIYASHITA PARK, a new landmark in Shibuya, features Shibuya Yokocho, a 100-meter-long…

2021.10.27　Shunichi Ikeda + Erina Hosono + Namiko Watanabe About three weeks after the state of emergency in Tokyo was lifted, we conducted our first urban night walk survey since the COVID-19 outbreak, heading to Akasaka. The area between Akasaka and Akasaka-mitsuke features both traditional establishments such as atmospheric ryotei (Japanesestyle restaurants) and neon-lit entertainment districts reminiscent of Kabukicho. At the same time, Akasaka has gained recognition as a tourist destination due to redevelopment centered around Akasaka Sacas. We surveyed the nighttime environment of this area where tradition, business, and nightlife coexist. ■Aerial Nightscape of AkasakaThe central area of Akasaka lies roughly in the middle of the cluster of high-rise buildings. At first glance, the nightscape viewed from above gives a rather subdued impression, due to the lack of prominent building illuminations or large advertising towers. However, upon closer inspection, one can see clusters of commercial lights peeking through the gaps between buildings. While the limited presence of dramatic lighting or decorative illuminations may make it less visually striking, the overall effect is a calm and environmentally friendly nightscape. ■Akasaka Sacas AreaAkasaka Sacas, a multi-use complex directly connected to Akasaka Station, is usually frequented by businesspeople and shoppers. However, likely due to the lingering effects of the COVID-19 pandemic, the number of passersby during our survey was surprisingly low, which was unfortunate. The nighttime lighting around the base of the 179-meter-tall Akasaka Biz Tower is uniformly set to a relatively low…

Tokyo Survey: Tsukuda / Tsukishima 2019.11.18　　Kyoko Takubo+Yuichi Anzai+Namiko Watanabe An overview of Tsukishima. In contrast to the bright large city buildings, the small alleys and storefronts don’t leak much light Tsukuda is an fisherman island made in Edo-period. Tsukishima was landfilled in Meiji era and now there are still many row houses and small alleys. While the port area of Tokyo is going through mass redevelopment, we investigated the lighting environment of this area filled with intermingling old town houses and large city buildings. Tsukuda Tsukuda 1Chome Mainstreet. Children playing outside the old candy store Tsukuda 1 Chome Mainstreet is mainly lit with mercury lamps Tsukuda Machikado Museum. Its lit with LED3000K with about 134lx. Our investigation started by taking an overview photo from a tall building from the other side of the river. With the hustle and bustle bright lights from the Central area’s cityscape, there was one part that was dark- that is our target of this investigation, Tsukuda・Tsukishima. The dark patch from this area is even more pronounced as it is surrounded by the bright city lights all around.   As we get back on the ground, we headed towards Tsukuda 1 chome (Old Tsukuda Island) Mainstreet. On our way we saw the mercury lamp streetlights (4500K) emitting some green tinted white light. The average brightness was around 11lx. In the day you could still see a nostalgic scene with children playing outside the old candy store…