Mastria: Mobility Orchestration in the digital age
Transport congestion of any kind of flow (cars, trains, bicycles, e-scooters, pedestrians, passengers...) is a major challenge in large urban zones. Considering the interdependency of transport modes in today’s dense urban environments, an incident on one mode of transport might create a series of reactions that will impact all the city’s transportation system globally. To respond to this challenge, Alstom is developing Mastria , the first multimodal supervision and mobility orchestration solution. In this article, we will present the global concept as well as two different Mastria functions in their operational environment and how their implementation led to an improvement in the management of daily operations in public transport systems (both road and rail based). Further, we will show how the implementation of these functions into an aggregated mobility orchestration is progressing.
Mastria supervises city mobility in order to detect and report real-time information from all transport modes to the operators’ control centers and provides recommendations on which procedure to follow and how to implement corrective actions in real time from the city mobility operation center. The goal of Mastria is to maximise fluidity between all the means of transportation in a city and to orchestrate passengers journeys. Mastria is a software solution only, in order to remain agile and be adaptable to any kind of OCC and traffic supervision tools already in place. Mastria can therefore be combined in a city using Alstom operation control solutions, but also those of any other manufacturer.
Mastria will help analysing, simulating and predicting mobility demand thanks to multiple data sources such as telecommunications (global demand monitoring mobile phones data), ticketing (via ticket gates), counting systems (on platforms or vehicle doors), CCTV, bluetooth beacons and heterogenous data (weather, traffic, incidents) that have an impact on mobility demand. Through big data integration, Mastria monitors people flows in real-time and predicts impacts at the same time to anticipate demand evolution, analyse modal shifts and hub flows.
The objective of Mastria is to help authorities and operators to adapt the transportation offer to the actual demand and synchronize better the different modes of transportation. In a context where private initiatives are driving the development of Mobility as a Service (MaaS) into an individual approach, authorities want to control and regulate the transportation systems of the city in order to promote sustainable mobility.
For example, the weather has a strong impact on the usage of various transport modes. Bad weather can bring people into the metro and connected bus services shall therefore be reinforced; in this case, regular users of the public transport offer could be warned to advance or postpone their trip in order to avoid congestion. On the opposite side, during good weather, free-floating scooters shall be disposed at the exit of the main regional train stations. Mastria can predict the demand evolution and give advice to authorities and operators to act accordingly as well as recommend the best way to move to people around the city.
Alstom decided to join their efforts with urban operators on specific use cases to implement Mastria functions step by step and thus provide the market with an all-encompassing mobility orchestration solution. Indeed, as with any product development, intermediate steps need to be taken before the final product is operational. In the following, two use cases will therefore be presented. The first one focuses on the management of heterogeneous bus system, the second one on a metro connection optimization.
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Zaragoza, how to coordinate multiple operators
To improve Zaragoza’s metropolitan bus network management, CTAZ (Transport Consortium of Zaragoza Area) and Alstom in Spain developed a pilot project to implement Mastria solution. The ultimate objective is to resolve incidents more quickly in real time and coordinate the actions taken by the authority and the operators in a more efficient manner.
The fleet of buses coordinated by CTAZ on which the innovation project is based includes 6 different operators and covers 30 municipalities, with a total of 25 lines. The organization of this complex network, which annually transports over 5 million passengers, represents a real challenge, as the different operators have diverse internal management mechanisms. Indeed, CTAZ which is the entry point for the passenger to get information about the bus traffic struggled to monitor the incidents encountered by the different operators. By not knowing what is happening on its network, the authority cannot inform passengers accurately . Before the implementation of Mastria, the monitoring of the different incidents was done manually by the authority only if a customer would raise an issue by calling the authority. Further quality of service was monitored on a monthly basis but not in real time. Taking corrective action was therefore very time consuming.
Zaragoza use case: approach, analysis and findings
The goal of Mastria was to respond to this problem by monitoring operations in real-time. This was done by integrating the bus network schedule and GPS data, in order to calculate and report delays, positions and incidents. It also included the use of algorithms and smart data analysis (historical and real-time), which made it possible to establish a model of automatic incident detection in the bus network of the Zaragoza metropolitan area. Ten incident categories were defined:
- Bus deviation (e.g. road works)
- Being ahead of schedule
- Being behind schedule
- Late start at the first bus stop
- Loss of connection (bus signal)
- Wrong direction
- Wrong mission
- Trip planned but not performed
- Trip not planned but performed (manual mistake)
Mastria acts as a new layer on the top of each operator´s system to automatically detect the incidents.
In the image above, the route in green is the planned route of the bus, the route in red is the actual route of the bus. Incident Deviation was triggered when the bus was detected outside of the expected path. With Mastria, the authority will immediately call the operator to learn about the reason of the deviation: is there a good reason or has the bus driver decided to change the route? Did the driver mix up the daytime or nighttime route?
The report of categorized incident in real-time made it possible to identify problems and were potentially misunderstood by the operator. The innovation and added value for CTAZ lies in the fact that the platform is accessible by both the authority and the various service operators, which makes it possible to manage jointly in real time all the network information and thereby improve the efficiency of incident resolution , offering an improved service for passengers. Today CTAZ can have real control over these transport operations with real-time visibility.
In Zaragoza, Mastria has shown its advantages in the case of use where the authority must coordinate multiple operators as in Zaragoza. The results of the implementation of Mastria in Zaragoza can be measured in a qualitative way: It is a strong management tool for the city’s mobility supervision authority and gives more clarity and transparency in the cooperation and contract management with the different operators
Panama, metro optimization use case
Another city in which Mastria has proven itself is Panama City: here, the application domain and results are more quantitative. Mastria is used to relieve some transport hubs from overcrowding and platform saturation.
The Panama Metro consists of two lines, which link the north and east sides of the metropolitan area to the city center. The 15.8-kilometer Line 1, opened in April 2014 serves fourteen stations, with a fifteenth station planned. Line 2, opened in April 2019, covers a 21-kilometer route and serves sixteen stations, with San Miguelito being the interchange station for both lines. The Panama Metro was built as a turnkey project by Alstom in order to relieve the road traffic congestion between Panama City and the suburb of San Miguelito, and to offer commuters a viable alternative to road transport, as the Metrobus transport system is suffering multiple issues.
When the second metro line in Panama was opened, it was quickly a victim of its own success with overcrowded platforms, queues in the staircase etc. Due to a ridership higher than expected, a huge saturation was generated at the interchange station of San Miguelito (see picture below). The operator has tried to implement operational solutions to reduce saturation, such as sending empty trains or not stopping at all stations. But there was no way of measuring the impact of these measures on station overcrowding. The challenge was to measure and anticipate the saturation effect and find the best solution to reduce the impact on passenger travel time.
The Panama use case: approach, analysis and findings
To solve this challenge, the first step was to understand the problem and define what is exactly happening by modeling passenger flows. To model passenger flows and identify accurately when saturation arrives, Mastria has collected two types of data:
- Ticketing: Check-in and check-out data from ticket gates in order to model origin-destination matrix.
- Signalling data in real-time: Trains position and weight for modelling the people flow in the trains and crossing with ticketing data modelling the entire people flow in the network (including the platforms)
With this input data, Mastria delivered a first level of analysis to better understand the effects of the actions implemented by the operator. The following KPIs were calculated and put in place:
- ¨Fail to Board¨: number and % of people missing a train because it was full (at a platform for each train) – this was also calculated with the origin-destination matrix calculated via information provided by the ticketing.
- Passenger travel time: the main KPI to optimize. The network saturation impacts passengers comfort and travel time, leading some of them to adopt private modes of transport.
It was found that the previous corrective operational actions taken by the operators were not implemented exactly at the right time because the time of saturation of the lines varied greatly from one day to the other (around 30 minutes), without a precise pattern for working days. This variation makes it difficult to schedule the corrective actions in advance. Many factors can influence mobility demand, and this variability makes necessary daily adaptation of the offer.
Once the problem was defined and measured, the second step was to predict the network saturation in real-time. In order to take the right actions at the right time. Mastria has therefore implemented a prediction of KPIs in real time and a saturation alarm that goes off 30 minutes before saturation thanks to machine learning. An operator in a control room dedicated is then able to take decisions in real-time and can send “empty train” directly to crowded stations without stopping at previous stations. A model built by machine learning algorithms has been implemented in Mastria based on historical data and fed on a real-time basis from signaling sensors.
The use of Mastria has had a real impact on the saturation of Panama metro. First, it has decreased the fail to board during morning peak at interchange station. The number of people who could not board the first available train at the interchange station during morning peak hour has dropped from 17000 to 10000, i.e. from 80% to 41%. It has also improved the waiting time at saturated stations: Pan de Azúcar -295 secs ; San Miguelito -112 secs ; Pueblo Nuevo -146 secs. Thanks to Mastria, average passenger travel time has been reduced by 3 minutes during morning peak hour, improving 30,000 passengers comfort and travel time.
The last step of Mastria which is under development is to give automatic recommendation to the operator to solve the saturation. To do this, the teams of Mastria are working with the operator to build different real-time optimization algorithms.
Towards a multimodal integration
The next step for Panama transport authority is to extend such system to a multimodal platform to better integrate the buses with the metro and thus make multi-modal operations more manageable. The first step will be to analyse, monitor and model global mobility in the city. Then, it will be possible to synchronize services, adapt transport offer to the demand and inform efficiently in real-time the passengers.
The objectives of the multi-modal platform are to:
- support the Planning the future lines of Metro
- Test different services scenarios offline for planning and preparing action plans for mobility orchestration
- Optimize operations in real-time depending on the current situation
- Predict and react efficiently to incidents
With the multitude of transport offers and actors today, it has become more complicated for municipal transport authorities to implement transport policies due to a loss of control. By helping to better understand the mobility of its citizens, Mastria is giving the tools to transport authorities to regain control of their transport systems and organize integrated mobility on their territory in an orderly manner. Based on artificial intelligence and modelling simulation, the force of Mastria is that it leverages existing big data from public transportation (services, vehicles, ticketing), road (traffic information, parking occupancy), telecoms & IoT (origin destination matrix, heat maps) and social factors (social networks, weather, city sensors).
At the final stage, Mastria aims to:
- Promote sustainable transportation by increasing public transport ridership
- Improve the planning for infrastructure investments thanks to a better understanding of citizens mobility and the simulation of development scenarios
- Implement a multimodal integration: Analyse modal shift and network bottlenecks, Business Intelligence for people flow fluidity, Hub Management
- Enable Mobility as a Service by generating high quality information accessible through open data platforms for on-demand mobility services
- Support operational decision-making support by predicting passenger’s behaviour in real-time but also by informing efficiently the public and a quick reaction for incident solving