Train Navigation System Using Actual Timetables for Dynamic Routing
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Solution Overview
Problem
Passengers face challenges with route navigation when train schedule diagrams are dynamically changed, leading to outdated navigation information and missed opportunities for more efficient routes, especially with the introduction of relief trains or in situations with high schedule undependability.
Innovation Solution
A transport navigation system that uses actual timetables and statistical calculations based on past operation history to provide up-to-date route information, incorporating input information such as starting and destination points, and calculating travel times and statistical amounts to generate suitable navigation routes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If route navigation is performed using a train schedule diagram scheduled no later than the previous day, then navigation information can be provided in advance, but the navigation information becomes outdated when train schedules are dynamically changed on the current day
Solution Approach 1:
The system dynamically updates the train schedule diagram in real-time based on actual train operations. The navigation information is continuously refreshed using the latest schedule data, ensuring that passengers receive accurate routing information even when schedules change during the day. This dynamic approach resolves the contradiction by making the navigation system adaptive rather than static.
Solution Approach 2:
The system incorporates feedback mechanisms where actual train operation data is continuously collected and used to update the schedule diagram. This feedback loop ensures that navigation information reflects the current state of train operations, maintaining accuracy without requiring manual intervention for each schedule change.
2Productivity
If the train schedule diagram is dynamically changed on the current day, then more efficient routes may become available, but passengers cannot access information about these new routes
Solution Approach 1:
The system performs preliminary calculations of multiple possible routes based on the dynamic schedule diagram before presenting options to passengers. By pre-computing efficient routes using relief trains and other schedule adjustments, the system ensures that optimized route information is ready and available to passengers before they make their travel decisions.
Solution Approach 2:
The navigation system continuously updates route recommendations based on real-time schedule changes. When relief trains or other schedule modifications are introduced, the system automatically recalculates and presents the updated efficient routes to passengers, ensuring they have access to the latest optimization opportunities.
3Adaptability or versatility
If multiple routes are calculated and presented to passengers, then passengers have more options, but the complexity of the navigation system increases
Solution Approach 1:
The system segments the route calculation process into distinct stages: identifying candidate routes, evaluating their efficiency based on multiple criteria, and presenting them in a prioritized list. This segmentation allows the system to handle multiple route options systematically without overwhelming complexity, as each stage processes a manageable subset of the total possible routes.
Data Source
AI summary
When input information including starting point information and destination information are input, this transport navigation system searches for a route for traveling from the starting point to the destination by a train of a transportation means on the basis of the input information, and outputs travel route information about the travel route obtained. The transport navigation system includes: a storage unit which stores the input information, an actual timetable including actual operation of the train, and a software program; and a CPU which executes the software program with reference to the input information and the actual timetable. The CPU calculates, on the basis of the actual timetable and the input information, the travel route from the starting point to the destination and a statistical amount about a travel time according to the travel route, and generate travel route information on the basis of the travel route and the statistical amount.