Interoperability and System Standards
ALFONSO DE LA PARRA DEL VALLE
SCT – Unidad de Autopistas de Cuota,
Toronto, May 2005
I. Overview of toll roads in Mexico
– Roads, players,
– Government Programs
Toll systems history in Mexico
– Descriptive system classification
– How has interoperability been attended
– How has homologation been dealt with
– New toll systems specifications
– What we expect to get from them
I. Overview of Existing Toll Roads in
– Caminos y Puentes Federales de Ingresos
(Capufe)) is the toll road operation company. It is
owned by the Federal Government.
– FARAC is the trust that is currently the
concessionaire of most of the network.
– Unidad de Autopistas de Cuota is the DOT branch
for toll roads.
– IAVE is the existing ETC supplier in Mexico.
– I&D is the new ETC supplier project for Mexico.
National Network of Roads and Toll
48,400 Km of the road network is under the Federal
Government’s s control and budget.
The network has 14 major corridors,
– With a total of 19,250 km (40%) in length,
– They gather 54% of the interurban traffic.
The Toll Road Network is 6,160 km in length,
– 74 toll roads and 41 bridges.
– The total traffic averages 850,000 vehicles a day.
– The growth rate is 5.7% a year.
– Most of them are on the major corridors.
The 1989-1994 1994 presidential period and its
Most of the existing toll road network was constructed
during 1989-1994 1994 (3,700 km, 60% of today’s
– Private Concessions: 49
– Five of these were bridges
These were added to three existing private concessions (240
km) and to Capufe’s network (+- 1,000 km.)
When the crisis stroke Mexico in 1994-95, 95, the
expectance of growth in the country decreased and
so did the toll revenue.
– Revenue was not enough to service debt
– major maintenance of the infrastructure was not possible.
In 1997 the government decided to rescue 23
The rescue implied
– The definition of the quantities for buyouts,
– To give the concessions to the Farac,
– To establish a contract with Capufe by the
Farac to attend toll collection and
maintenance of the toll roads (operations),
– To modify operative and toll fare strategies
to promote the usage of the rescued
– To manage funds to re-finance the debt,
endorsed by the Federal Government.
Institutions 13% Currently Related to Toll Roads
The Mexican Government currently has the
operations and maintenance of a high percentage of
the Toll Road Network, as follows:
Capufe’s direct management (30 bridges, 3 minor toll
Concessioned to the Road Rescue Fund (Farac(
(44 toll roads + 3 bridges, 4,407 Km.).
The rest of the federal toll concessions is divided as
– Concessions to private companies and financial
institutions (18 toll roads + 3 bridges, 1,287 Km.)
– Concessions to the States in the Union (9 toll
roads + 4 bridges, 354 Km.)
Federación Privadas Estatales
Federation States Private
Government Sector’s s Program 2001 -
Strategies directly linked to the infrastructure
– To promote the usage and benefits of the
technology and the information.
– To improve the transportation infrastructure
– To strengthen and to follow the supervision of the
toll road concessions.
– To promote the introduction of new payment
methods, different to cash.
– The construction of information systems to
improve the performance of the system and to
attend the most frequent needs of the users.
II. Toll Systems in MéxicoM
What is Interoperability?
The feature that allows a system to
accept other systems, sub – systems or
components that perform different tasks
and share with them its own
components, functions or data.
– Many times it is necessary to include new
devises, sensors or components useful
only to the dependent sub – systems.
What is Homologation ?
– Homologation is the authority’s s or market’s
formalization of the necessity to have
systems that produce similar data, that are
compatible among them.
– That all existing systems may accept
commercially generic components, not
proprietary, to achieve economies of scale.
Three big toll system categories:
Manual Collection Toll Systems
– The vehicle must stop to pay.
– No coin machines in Mexico, not included in this description.
Combined or Mixed Toll Systems
– A combination of manual toll systems with cash payment
and some kind of electronic ID, such as smart card, AVI,
proximity card, etc.
– The vehicle may not need to stop. The speed in the point of
the transaction is very low. (less than 5 km/h)
Automatic Toll Systems
– Without a toll collector.
– ETC, either in a controlled slow speed barrier or the barrier
less systems. “Open Tolling”.
We also classified the systems by
Low Technology Systems:
– Basic functions, with only transaction data and
data packages, low desegregation
– Low configurability of its components. Fixed
configuration. You live with the original
configuration through all of the equipment’s s life.
– You define your operations based on how the
system works, instead of using it as a tool.
– Very few lane components and low capacity to
integrate new ones.
Low Tech System configuration in Mexico
Mid Technology Systems
– The “in
– between” low and high.
High Technology Systems
– Functions that check the overall performance of
– Powerful audit tools.
– Data desegregation and function reports.
– High level of data security.
– High integration level.
– Highly configurable.
– Toll operations and management tools.
– And many others
High Tech System Lane Configuration
To determine the kind of design a system has, you have
Quantity and quality of the system’s s functions,
How elaborate is the software is,
The data precision and security,
Levels of desegregation of data,
Its capacity to interact with other systems,
Modularity and configuration,
Its capacity to integrate the system into operative
groups, such as various toll roads managed by one
The toll operations management tools included in the
III. Types of Toll Systems in MéxicoM
Mexico started with simple manual systems.
They have become more sophisticated.
Most systems are mixed; they all have
manual toll collection and some electronic
Its sophistication is from low to medium in
A group of around 12 toll roads are operating
with more sophisticated systems.
There aren’t t any “Open Toll” operations in
The results is in accordance with the
previously described groups; there are
systems that can hardly gather enough
information beside the strictly necessary
for collection purposes.
When in a group of toll roads there is
one with limited capacity of data
generation, the whole group suffers.
Capufe’s Modernization Project
A group of toll roads with a more advanced system.
Represents a 20% of the total of Capufe’s systems.
They may interface with the ETC systems from the
plaza system, not having to use the ETC supplier’s
Its database features are more advanced, audit
processes and management support are more
Modular architecture and a high level of security.
System design and supplier is French, Thales,
Capufe owns the whole system, including the source
IAVE, Currently Active ETC
It is normally a lane controller and an antenna installed
on the toll collection lane.
Valid transactions are indicated through an interface to
the manual collection system’s s lane controller.
– When the lane has a collector, the collector accepts the
Each system works independently, each one has its
own accountability functions.
Capufe pays the supplier on a per transaction basis, the
supplier proves was charged by IAVE.
The technology used by this system is 915MHz, ATA /
T21 from Amtech.
The New ETC System,
Owned by I&D
Similar deployment as IAVE has. It’s s supposed to
substitute IAVE, not live together.
It is also set in paralel. . It interfaces similarly as the
I&D pays for the transactions that Capufe requests.
There is also a per transaction fee.
The technology used by this system is 5.8GHz, CEN
from Kapsch, , de Austria and integrated by Tecsidel,
Capufe has achieved homologation by doing
massive purchases of systems to the same
vendor. There are three toll collection
systems vendors for Capufe, , (40 – 40 – 20%)
These systems report to regional offices,
where the information is gathered and the
reports are processed.
– The system at this level does the interface with
Capufe’s central system, designed by them.
The regional system transfers information
electronically to the central offices. (Satellite)
To achieve interoperability, Capufe has
implemented simple interfaces and time
The secondary systems inform the main
system about a valid transaction.
Each system registers transactions and
keeps its own records.
Generally the transaction number is not a
tracking reference to conceal multiple
system’s s readings.
Besides this described interface, both
systems are autonomous.
Current Lane Configuration
Interoperability in today’s s scheme
Each system names
Lane with higher level of sophistication
Interoperability in the new scheme
Only one name for the transaction,
For all of the systems
IV: New Context
In order to improve the toll operations and data
acquisition in toll roads, the UAC (Toll Road
Authority) has submitted new specifications
for toll systems. We pretend to:
– Improve revenue colletion
at toll plazas by
reducing shrinkage potential.
– Improve data security.
– Gather more data related to traffic and revenue.
– Change the interoperability and homologation’s
theory to build a more solid system base.
– Establish the technological base for more modern
methods of toll collection.
– Setting the technological base for Open Tolling.
Higher sophistication level, capable of
migrating from mixed systems to automatic
ETC systems using the same basic structure.
Not needing to replace the system.
Systems must allow changes of operation
structure at various levels, and so they are
able to take new devices to improve or
enhance its performance.
To contain more sophisticated devices
to verify the data in audit processes.
High level of desegregation,
– Capability of emitting various reports,
– To modify formats and
– To have automatic emission / transmission.
High level of data acquisition devices to
help with the generation of statistics to
improve road planning and operations.
High efficiency levels of cash management, achieved
– The high security in the data.
– Avoiding various identification of the same
– More sophisticated audit and verification
Toll collection by various methods of payment.
– Various methods may be applied, different from
– Allow the account management and to create
– May interface with National ETC projects from the
plaza system, without duplicating the equipment at
the lane level.
Purpose of the changes in the
With the new configuration, the toll plazas may
be used for data acquisition, as follows:
– A toll plaza has an economic reason to exist.
– May change or enhance vehicle classification to
include more variables.
– Transaction data may contain statistical
information, not particularly related to tolls.
– It allows the operator to better manage traffic
through tolls and other measurements and
achieve best performance for the user.
– Allows the operator to perform national or
regional programs related to governmental
or commercial affairs. (special season
– Contribute as a source of accurate data for
the ITS systems to service the users.
– Contribute with accurate data for the
authorities about the usage of the road to
better plan the future communication
Systems in Mexico may be classified as
medium technology with a steady advance
toward more sophistication in the last few
There have been changes that have
improved the performance of the systems, but
the size of the major customer sets the pace
towards its enhancement.
The new specifications start a path toward a
new, more open way of interoperation and
It will gather more data to the toll systems
operators, users and authorities.
More security devices to keep data safe.
Homologation through open architecture in
the system design.
The interoperability through the concentration
of data at the plaza level and submitting data
in general data languages to be used by
Sets the technological base for open tolling