Mitsui Fudosan launches smartphone indoor-navigation service across its Nihombashi retail cluster
Mitsui Fudosan began running a smartphone-based indoor-navigation service across six of its tenanted buildings around Nihombashi Station on October 1, a concrete fix for the wayfinding problem that dogs underground retail districts — and, with pre-launch testers reporting a 100 per cent arrival rate, an accessibility bet Japan's largest commercial-property developer is now extending toward Tokyo Station.
Mitsui Fudosan said it began operating "IndoorFlow," a smartphone indoor-navigation service developed with Ashirase, a startup spun out of Honda, across six of its tenanted buildings around Nihombashi Station from October 1: COREDO Muromachi 1, 2, 3 and Terrace, Nihombashi Mitsui Tower, and YUITO, according to the developer's October 2 announcement.
The service uses the phone's camera to position the user indoors, where GPS signals do not reach — a visual positioning system that, the company said, needs no new hardware installed in the buildings themselves. For visually impaired users it gives audio and vibration cues; for other visitors it overlays on-screen directions in multiple languages. Routes can be tailored to need, including barrier-free paths for wheelchair users, and can guide people to destinations such as gender-neutral restrooms, nursing rooms, ticket gates, coin lockers and restaurants.
Ahead of launch, Mitsui Fudosan ran a trial with 42 participants, including people with visual impairments and wheelchair users, in which everyone reached their intended destination; 88 per cent said the service reduced their anxiety about navigating, and 95 per cent said it opened up places they otherwise would not have gone, the company said. It plans to extend the service toward the Yaesu and Tokyo Station area, support it at MICE events, and eventually roll it out nationwide.
Nihombashi's maze of underground passages and interlinked towers is exactly the kind of district where conventional GPS wayfinding breaks down, and Mitsui Fudosan is the landlord of the six buildings now covered — so the navigation layer sits on infrastructure the developer already controls end to end. That makes IndoorFlow less a standalone product than a piece of asset management: an easier, less anxious route to a restaurant, a till or a restroom keeps a visitor on the property for longer, and a frictionless path for wheelchair users and the visually impaired is increasingly table stakes for inbound tourism and an ageing domestic customer alike. The real test is adoption beyond the 42 people who tried it under controlled conditions — and whether the promised extension to Yaesu and Tokyo Station turns a single district's fix into a connected network.