Bus Station Berth Allocation and Speed Guidance
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Solution Overview
Problem
Current methods for berth allocation and speed guidance at multiline bus stations are inefficient, leading to traffic congestion and operational issues due to buses arriving simultaneously, inconsistent arrival times, and limited berth utilization, resulting in chaotic passenger waiting and frequent bus starts and stops.
Innovation Solution
A method that ranks estimated arrival times of buses, conducts speed guidance through bus-mounted terminals, and allocates berths via an intelligent control center, considering berth occupancy, signalized intersections, and real-time traffic conditions to optimize berth usage and bus sequencing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If buses are allocated to berths based on simple arrival time sorting, then the allocation process is simple, but buses of different lines may enter the station at the same time causing congestion and chaotic passenger waiting
Solution Approach 1:
The system dynamically adjusts berth allocation based on real-time bus arrival predictions, line types, and berth occupancy states. The allocation is not static but adapts to changing conditions, allowing the system to optimize for both simplicity and efficiency under different operational scenarios.
Solution Approach 2:
The system changes multiple parameters simultaneously including berth assignment, speed guidance thresholds, and bus sequencing based on predicted arrival times and line characteristics. This multi-parameter optimization resolves the contradiction by coordinating several variables rather than relying on a single simple rule.
2Device complexity
If the bus station uses a straight-line integrated design with the road, then the station design is simple, but buses must enter one by one and overtaking is impossible, reducing berth utilization efficiency
Solution Approach 1:
The system performs preliminary speed guidance and berth allocation before buses actually arrive at the station. By predicting arrival times and pre-assigning berths, the system prepares the optimal sequence in advance, allowing buses to enter efficiently without congestion even in straight-line designs where overtaking is impossible.
3Device complexity
If the dispatching center sorts arrival orders according to entry time into the guidance area, then the sorting process is straightforward, but inconsistent driving times in different directions caused by complicated traffic conditions lead to inaccurate sequencing
Solution Approach 1:
The system uses predicted arrival time feedback to continuously refine berth allocation and speed guidance. By comparing predicted times with actual conditions and adjusting allocations accordingly, the system compensates for traffic variability and maintains accurate sequencing despite complex traffic conditions affecting different directions.
4Device complexity
If the station allocates berths without considering berth state and service time, then the allocation is quick, but buses cannot be effectively allocated when berths are limited, causing buses to line up in the station
Solution Approach 1:
The system performs preliminary berth allocation calculations that factor in predicted service times and current berth occupancy states before buses arrive. This advance planning ensures that even with limited berths, buses are assigned to appropriate berths in advance, preventing queues from forming at the station entrance.
Data Source
AI summary
Provided is a method for berth allocation of a multiline bus station and speed guidance of buses. The intelligent control center sorts all buses between the current station and the previous station to form the BusNumber table, and performs speed guidance for all buses in the BusNumber table. Whether the guided bus can pass through the signalized intersection is determined. The buses that cannot pass through the signalized intersection are guided by acceleration, and those that cannot pass through the signalized intersection by acceleration guidance method update their speeds based on the phase state of signal light, so as to pass through the signalized intersection without stopping in most cases. All buses are conducted through speed guidance methods, and the berths are allocated for all the buses under different conditions.