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Train crush rate visualization

IP.com Disclosure Number: IPCOM000200001D
Publication Date: 2010-Sep-23
Document File: 3 page(s) / 103K

Publishing Venue

The IP.com Prior Art Database


Every day a lot of people use to take the subway. It often happens that there is an unbalanced distribution of passengers between the different units: almost empty units and full units. In order to solve this problem some subways have communicating units to enable the crossing between the different units. This solution is easy only when the subway is almost empty and just for reaching contiguous units. But it?s very hard crossing unit by unit when the subway is crushed or when the passengers have heavy luggage or baby carriage. So it could be very useful to have a priori knowledge about the crush status of the units, so the passengers, waiting on the platform, are enabled to choice the unit less busy, and place themselves in the right position on the platform. The same considerations could be applied to the trains, in particular all the trains that don?t have the booked sites.

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Train crush rate visualization

We propose a solution to calculate the units crush rate in order to notify the passengers about the next train units state. The information monitors are already implemented in the station, and they notify the passengers about the waiting time for the next train. We propose to add the units crush rate information; this information could be shown like a train representation with the units colored in red, orange or green, respectively for busy, average busy and almost empty units. Obviously it must be indicated the position of the units on the platform, in order to help the passengers with the positioning in the right place.

To implement this, weight sensors could be installed on each unit. These sensors calculate passenger's weight and this information is used by elaboration center to calculate the crush rate. This rate is calculated based on predefined table mapping the weight ranges with the crush rates. The elaborated crush rate is sent to the next station and then displayed on the information monitor by a graphic. The graph consists in a train representation with the units colored in red, orange or green, respectively for busy, average busy and almost empty units as shown in the following picture (figure 1).

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Figure 1

This system could be implemented by the following components (figures 2 and 3): On the subway/train:
ยท Weight sensors on the units: they measure the passenger...