Technology

Introduction

The Japan California High Speed Rail Consortium is composed of seven leading Japanese railway companies: Kawasaki Heavy Industries, Ltd., East Japan Railway Company (JR East), Hitachi, Ltd., Mitsubishi Corporation, Mitsubishi Heavy Industries, Ltd., Nippon Sharyo, Ltd., and Sumitomo Corporation.
We look forward to participating in California High Speed Rail, the first high-speed rail project in the U.S. The consortium will be providing the E&M system, operational and maintenance support, and will adopt the sophisticated Shinkansen technologies from the successful operation of Shinkansen.
The Japan California High Speed Rail Consortium will realize efficient, environmentally friendly high-speed rail in California.

Rolling Stock

The rolling stock for California High Speed Rail will combine the proven technologies and features of the Shinkansen, such as safety, light weight (for low energy consumption), and excellent ride comfort, while fully complying with U.S. requirements.

Specifications of Proposed Train
8 Car EMU (6 motor cars + 2 trailer cars) Trainset Output Approx. 9700kW
Train Length Approx. 7874 in (200 m) Maximum Axle Load Approx.14t
Car Width 133 in (3380 mm) Other Features Bogie abnormality detection System,
Continuous ventilation System,
Tier ?? / ADA Compliant
Maximum Service Speed 220 mph (350 km/h)
Passenger Capacity Approx. 510 persons

Signaling & Traffic Control System

DS-ATC system DS-ATC system
Operation Control Center Operation Control Center

The sophisticated signaling and traffic control systems of the Shinkansen system has earned it a world-wide reputation for safe and efficient operations.
This system incorporates DS-ATC (Digital communication & control for Shinkansen-ATC) and constantly displays signals showing permissible train speeds. Speeds are calculated based on the distance from the preceding trains and conditions of the route ahead. The system automatically controls train speeds based on this information.

To ensure the safety and reliability of the Shinkansen, it is essential that all trains running in the system be controlled in an integrated and centralized manner. The traffic control system permits real-time confirmation of current train positions, train numbers, route open/close status and other data on a fully integrated interface.
The Signaling & Traffic Control System is closely interfaced with the protection system for intrusion detection or weather monitoring system using an anemometer and rain gauge.
The Japan California High Speed Rail Consortium proposes this advanced system for California High Speed Rail.

Power Supply & Overhead Catenary System

The AC 25kV electric power for the trains is supplied from substations located along the tracks to all trains through an overhead catenary system.
The power supply system includes the overhead catenary system, a power collection system and the propulsion system on the trains. It has been developed specially for the Shinkansen to suit high-speed and high-density train operations while meeting environmental requirements.
The Shinkansen's power supply system will help realize reliable and comfortable high-speed train operations in California.

Power Supply System Power Supply System

Communications

The communication system transmits voice, images and data between railroad operators and passengers over the entire line of the high-speed rail system.
A broadband optical data transmission system is the key component for this fully integrated communication system. It provides services utilizing the telephone and public address systems for voice communications, an onboard radio system for voice communications to and from ground-based installations, a CCTV image communication system for sites to control rooms, and a passenger information system for visual communications to passengers.
Data communication for the plant monitoring and control system and time distribution system supplement this key component.

Passenger Information System Passenger Information System
Train Radio System Train Radio System

Earthquake Safety

Early Earthquake Detection System

On the JR East Shinkansen, seismometers are installed at many locations. When these seismometers detect preliminary tremors (P wave), which arrive ahead of an earthquake's principal motions (S wave), they transmit signals to stop the trains automatically.

The March 2011 Earthquake

When the massive 9.0 earthquake struck eastern Japan on March 11, 2011, 27 Shinkansen trains were operating. However, not a single Shinkansen was derailed, thanks to seismic reinforcement of viaduct columns and the Early Earthquake Detection System.

Passenger fatalities0
Passenger injuries0

This sophisticated earthquake detection system will be implemented for California High Speed Rail, where large earthquakes may be expected.

Early Earthquake Detection System Early Earthquake Detection System

Operation

The JR East high-speed rail network extends out in five directions from Tokyo, and the traffic volumes differ from section to section. To cope with these diverse demands, flexible transport services are provided for three transport patterns: high-speed travel, commuting, and through service.
JR East provides customers with frequent service via thoroughly streamlined operations. During the peak season, over 400 Shinkansen trains are operated per day.
The Yamagata and Akita Shinkansen were converted from conventional lines for through-service operation. Shinkansen-exclusive trains and through-service trains are coupled between Tokyo and intermediate stations. At the intermediate station, the two trains are separated and each continues to its final destination. Passengers enjoy comfortable and uninterrupted travel to their destinations without changing trains.
The Japan California High Speed Rail Consortium will provide operational support based on the extensive experience of JR East.

High frequency train operation

5
Destinations from Tokyo Station
4min.
Minimum train interval
12min.
Turn-back time at Tokyo Station
400
Trains per day
Coupling and Uncoupling Coupling and Uncoupling

Maintenance

Proper maintenance is the key to ensure safe and reliable operation of high-speed rail. This consists of preventive maintenance (regular service and replacement of consumable parts) and corrective maintenance. Appropriate preventive maintenance is essential for safe operation.
For more effective preventive maintenance, condition-based maintenance is performed which monitors the condition of the parts and components regularly and notes the wear trends.
JR East has a multipurpose inspection train (East-i) that monitors the condition of the Shinkansen system. It is equipped with measuring devices for tracks, electrical power, signals and telecommunication facilities. Featuring sophisticated equipment such as a front-image recorder, automatic wire inspection at junctions, and digital train radio measurement, etc., precise inspections are possible, even while running at 170 mph (275 km/h).
The Japan California High Speed Rail Consortium will provide the high-quality maintenance support developed during the many years of experience with JR East.

Maintenance Image
Maintenance Image Multipurpose inspection Shinkansen train: East-i