Date of Issue: January 30, 2026・Activity 1 / City Night Survey : Riyadh, Saudi Arabia（2025.11.16-11.18）・Activity 2 / City Night Survey : Tashkent, Uzbekistan（2025.11.09-11.14） City Night Survey : Riyadh, Saudi Arabia Diriyah, KAFD and Metro stations Riyadh2025.11.16 – 11.18　Gita Listia The purpose of this Riyadh lighting survey is to explore the characteristics of old urban areas and new developments in KAFD Riyadh, with a particular focus on their metro stations. The study aims to understand how each area expresses its identity through public space lighting and how lighting strategies are applied in major infrastructure such as metro station. ■Diriyah Diriyah is a historic area on the north-west side of Riyadh and one of Saudi Arabia’s most important cultural heritage sites. Located along Wadi Hanifah, about 15 km from central Riyadh, it reflects the early history of the city. Today, Diriyah is being developed into a vibrant heritage, cultural, and lifestyle destination, where historic preservation is carefully combined with modern urban design. The lighting in Diriyah is designed to be subtle and heritage-sensitive. Very warm white tones are used to complement the Najdi mud-brick architecture, creating a calm and welcoming night-time atmosphere. Pole lights and bollards in Diriyah feature distinctive shapes, patterns, and warmer colour temperatures compared to typical street lighting in other parts of Riyadh. This traditional lighting character clearly signals that visitors are entering a cultural and heritage area. ■At-Turaif At-Turaif is the birthplace of Saudi history and represents the…

Small Group Night Walk Review 2020.11.28　　東悟子 An online review session was held to reflect on the “Small Group” night walk surveys conducted across seven locations in October and November. As members shared their observations and experiences, each report sparked curiosity and inspiration—many found themselves wanting to explore the places others had visited next. Participants joined from a variety of locations — their homes, workplaces, izakaya(Japanese style pubs), and even schools Each group leader gave a report on their night walk survey findings We held our fourth online salon of the year, focusing on a review of the night walk surveys conducted in small groups during October and November. Each area leader reported on their respective night walk survey. Typically, we divide into three to four groups to explore the same area and then present our findings. However, this time, the night walk surveys were conducted in completely different locations—including Nagoya, the Midosuji Illumination in Osaka, the Shibuya public restroom tour & Miyashita Park, Toyosu, Yanaka, Azabu-Juban, and Somei Cemetery & Sugamo. As a result, the reports were rich in variety, and the 90 minutes flew by. In the report from Nagoya, which focused on streetlights, large and flamboyantly designed streetlights were introduced and praised as “heroes” for contributing to the vibrant, energetic atmosphere characteristic of the city. On the other hand, LED illuminations that cast an overwhelmingly blue hue over the surroundings were labeled as “villains.” The team in charge…

Investigating the lighting of Kagurazaka known for its charming blend of Japanese and European cultures, reflected in its history, culture, and dishes.2024.11.18 Amane Kotani + Akira Tawarada + Noriko Higashi Our final city walk of 2024 took us to Tokyo’s Kagurazaka. This popular area is lined with small alleys filled with trendy cafes, restaurants, and izakayas. Tucked away behind the distinctive cobblestone streets are high-end ryotei (traditional Japanese restaurants) and French restaurants without signs, creating a hidden gem atmosphere. It’s a perfect neighborhood for strolling, but what about its lighting? We divided into two groups of eight and set out to explore. Kagurazaka is a town with a hidden charm, blending the atmosphere of Edo with French culture. The cobblestone streets are lined with historic buildings and unique shops, creating a nostalgic atmosphere. The area is particularly known for its dining options, with hidden restaurants and cafes offering delicious food and wine, making it popular with tourists. We explored the nighttime scenery of this charming town. ■ Team 1: Kagurazaka Alleyway Exploration RouteTeam 1, under the theme of “Kagurazaka Alleyway Exploration Course,” started from Iidabashi Station and explored various alleys. We were deeply impressed by the entire neighborhood’s high level of interest in lighting. There was a wide variety of lighting, such as illuminating shop signs while ensuring the safety of pedestrians and installing footlights on shop walls. As soon as we started our walk, we came across the illuminated…

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…

We had our third “Lounge Talk with Mr. Mende and Friends” live streamed on YouTube.The theme was “Light on the waterfront. We delivered an enjoyable one-hour talk with Mr. Hidenobu Jinnai, a guest who was perfect for the theme. The third installment of “Lounge Talk withMr.Mende and Friends” was held after a year’s absence. We invited architectural historian, Mr. Hidenobu Jinnai as a guest and delivered a one-hour talk live. Mr. Jinnai has been researching waterside urban planning for many years, having studied in Venezia after graduating from university. Whenever the theme of the Lighting Detectives’ events has been waterfront lighting, we have always invited Mr. Jinnai and asked for his opinions. In this episode, He reviewed the Lighting Detectives’ practical lecture series, the Sumida River houseboat tour in 1996, and an interview in 1998 in which he asked the audience to predict the nightscape of Tokyo in 2050, as well as the proposal for Tokyo waterside lighting created by the LPA for the “2050” exhibition held in 2016. He reviewed the “Tokyo Nightscape Proposal” that LPA created for that exhibition, and discussed his vision for the future of waterside lighting and which areas have great potential. In the preliminary meeting, we had talked about ending the live stream in about 45 minutes, but the conversation kept going, and Mr. Mende and Mr. Jinnai seemed to be able to talk forever, but since it was a one-hour program, we ended…