No More Nuisance Parking, for Beautiful and Habitable Urban Development


Bicycle is an easy-to-ride transportation. Recently it is getting a lot of attention as a no emission vehicle. Despite the fact, many things are still left unsolved in Japan. Bicycle roads are not popular, yet. Land values are too high to develop appropriate capacity bicycle parking. That is why nuisance parking is found anywhere at footpath in urban area. Those parked bicycles would spoil surrounding sight and bother ambulance access and fire-fighting operations. It is considered to be a social problem.

Eco-cycle is an anti-seismic mechanical underground parking lot. Giken aggregated own long term experience of press-in technologies and developed the Eco-cycle with the design concept of “Culture Aboveground, Function Underground”. If bicycle parking is available near final destination, people use the facility more often. It eventually eliminates nuisance parking at footpath. Such space at footpath can be utilised for cultural activities.

A bicycle parking system with compact design that is friendly to both humans and the environment

1.Land-saving & Compact Design

The absolute requirement for a bicycle parking lot is to be close to the destination shopping facility or station. The Eco-cycle can be installed in an extremely small space, as it is made from our unique press-in technology.  It is a compact bicycle parking system that is particularly powerful in urban districts where it is difficult to acquire enough land.

2.Indispensable Items for Aesthetic Urban Development

Efforts to create a new community, by making use of bicycles and other ecological vehicles, for example the rental bicycles; are being started in various places. Aside from the entrance/exit booths,  the rest of the Eco-cycle structure is underground, enabling design for the environment (Eco-design) without having to harm the landscape by leaving the surface as a park.

3.User-friendly & High-security System

The Eco-cycle is a computer-controlled automatic bicycle storing-and-retrieving system. It maintains a high level of security with many surveillance sensors. Because bicycles are stored in an underground space, there is no fear of theft and security is complete.

4.Super Quick Operations

Storage and retrieval of your bicycle is done with an IC tag or IC card, thus making it easy for anyone to use. Average storage and retrieval time is only 13 seconds, so there is no stress from waiting.


IC Card

5.Low Running Cost

By employing a construction method for an efficient storage mechanism and system construction, we were able to realize low-cost. Our unmanned operation system is another factor for our large-scale reduction of running cost. The “Eco” in Eco-cycle does not only mean ecology—it is also represents “Eco” for Economy.


IC Tag

6.Simple Design for Short Construction Duration

The construction of a bicycle parking facility was achieved in a short period of time by using the continuous wall (which is built by press-in piling materials) as the earthquake-resistant structural wall in a bicycle parking facility. Unlike the conventional construction method, the press-in method is noise free and vibration free and virtually has no impact on the surrounding environment.

Trouble-free and Easy Operation

The operation of storage and retrieval of bicycles is fully automated by computer control. Since the operation procedure is given with visual and audio instructions, it is simple to use even for the first time users and the elderly. Additionally, it has excellent safety features by using various sensors and safety equipment.

Video showing the process of storage and retrieval of a bicycle

Drop-off Operations

1.Push your bicycle forward to the front of the entrance door. The front wheel shutter opens, activated by the IC tag attached to the bicycle. Push the bicycle forward and insert the front wheel into the slot.


2.After the front wheel is inserted it is then clamped, and the bicycle is fixed. After fixing the bicycle is fixed, step clear from the mat, and press the “drop-off start” button. Drop-ping-off operation is then completed.


3. The entrance door opens, and the bicycle is drawn inside the entrance booth, and the door closes.


Inside, a carrier loaded with a bicycle is descending in a rotary motion towards an empty palette.


The carrier pushes the bicycle out to the rear part for storage in the empty palette, and the storage process is then complete.

Retrieval Operations

Place the IC card on the IC card reader.


Step clear from the loading dock, and wait.


Inside, the carrier is pulling out a bicycle which has been stored in the palette.


Then the bicycle is loaded on the carrier, and the carrier is ascending in a rotary motion towards the storage/retrieval booth.


The entrance door opens and the bicycle is pushed out. Remove your bicycle according to the audio guidance.

IC Card and IC Tag System

The IC tags and IC cards can be used in a non-contact manner. This prevents errors in reading of the cards, due to dirt or dust adhering on the card surface such as the case of magnetic cards, and it also prevents from being stuck in the reader due to bending of the card.

IC tags and IC cards have long life span of over 100,000 uses.

The user and the bicycle are identified by reading the unique ID from the IC tag or IC card.

The bicycles sensed with the IC tags can be easily managed.


The opening part of the booth is blocked to the narrowest possible opening by our unique shutter mechanism. When a user turning in a bicycle for storage, only the shutter will be open, the entrance door will remain closed. This provides the maximum safety as a person cannot get in the booth.


Speedy simple construction

A multi-function construction method is adopted, where the continuous wall built by the pressed-in sheet piles itself becomes the aseismic structure wall of the ECO Cycle. By using prefabricated materials, based on the original press-in technology of GIKEN, speedy construction without temporary facilities has been achieved.

Construction Sequence

1.Installing piles to form a cylindrical wall using a specially designed Silent Piler.


2.Excavation of soil from the cylinder to create the underground space.


3.ECO Cycle is installed in the cylinder.


4.Finally the entrance booth is fixed above ground.

The skeleton structure
The skeleton construction

1. The outer shell member (hat-sheet piles)
The hat sheet piles used in the outer shell member of the Eco-cycle are of a Government authorized material, based on the Building Standards Law.

“2. Upper floor and intermediate stiffening ring beams (H-sheet steel)
The H-sheet steel commonly used in the civil engineering and construction fields has been used in the upper floor lattice beams and the intermediate stiff ring beams which are arranged in the internal part of the building frame.”

“3. Lower floor (RC)
The lower floor of the lower part of the build frame is the RC structure, and it is constructed by fixing with the stud dowel which has been welded to the hat-sheet piles to form an integrated body.

Certification for using hat-sheet piles for underground construction of the outer wall

Hat-sheet pile “SM-J295” is a product that was certified as building materials.

Certificate of designation
Obtaining of general appraisal (the construction method and construction design method)

The Eco-cycle construction method and construction design method were acquired through “General appraisal” by the Japan Construction Center.

Written assessment



Appraisal contents: The method of using hat sheet piles in the outer shell of the wall for evaluation of the construction and construction design of the cylindrical underground structure arranged with the H-sheet steel intermediate stiffening ring beam to the outer shell wall

Environmentally Conscious Design (ECO Design)

Achieving a recycling-oriented life cycle that is environmentally conscious


As times change, modern society needs change. Therefore, we need to adapt to these changes.

Public facilities in the future will be something that can be easily removed, when their functions become obsolete.

The pressed-in sheet piles used in the construction of ECO Cycle can be removed, relocated and reused at another location. They may also be used for a completely different structural purpose. ECO Cycle performs a necessary function for a certain period and can be easily removed when its purpose is completed, it can be relocated and reused elsewhere. This way ECO Cycle is “a functional structure” that is environmentally conscious and has a function-based reusable life cycle.

Smart compact design, can accommodate most all types of commercially available bicycles

The staggered arrangement has been adopted in the palettes inside Eco-cycle, which can accommodate 204 bicycles in a very shallow underground space of 11.9m. Additionally, it is built to store various types of commercially available bicycles including the mountain bikes, electric bikes, the popular fold-able bikes, and the bikes with a rear basket or a child seat.

Eco-cycle ® specification*1 As of May 2015
Staggered Layout

High parking capacity is realized by staggering each layer by half the layer

therefore, minimising the depth of excavation work.

Plan View
Cross Section
General Outlook

Various applications of the Eco-cycle

The enhanced convenience achieved by setting up the bicycle parking facility in an open space in front of an office building or a train station
The combination of underground and aboveground types of storage is space-saving and can store a large quantity of bicycles.
The outer appearance of the storage entrance booth can be designed to matching the surrounding ambience.
You can tour an Eco-cycle, Eco-park demonstration.

“Address: Daido Shinagawa Building 1F, 1-6-35 Konan, Minato-ku, Tokyo

It is a 7-minute walk from JR Shinagawa Station Konan Exit (East Exit) ”
“The tour of the demonstration is by appointment only.
If you wish to join a tour, please contact the following.”
Construction Solutions Department, Underground Development Section
Tel. 03-3528-1629 Fax 03-3527-6055

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