Cal y Mayor y Asociados has participated in each of the phases of the development of this system, from the conceptual design, executive project, construction supervision and monitoring of maintenance during its operation. Particularly, we have been present directly or indirectly in the following processes: technical, administrative and financial supervision of studies, designs and construction of the yard (garage) and the main terminal (“Tunal”) and in the technical, administrative, financial and environmental supervision of modifications on the trunk road NQS.

TRANSMILENIO or “Transporte del Milenio”; which is today, because of its efficiency in the operation, high quality service and ample coverage, one of the BRT (Bus Rapid Transit) systems known worldwide. It carries on average nearly 150,000 passengers during peak time, reducing over 1.5 hours the average travel time for users, has 114 stations in operation distributed in its corridors, the buses are controlled via satellite, allowing to secure the frequencies according to the needs of demand, its routes serve a extensive part of the city and are linked with 74 feeder routes, its fleet exceeds 1,000 buses and has an average speed of operation of 16.77 miles/hr (27 km/h). This system was very well received by public opinion due to its comprehensive handling of public space and remarkable enhancing of the city.

Within the new Mexican toll highway concession scheme, which enables the participation of public and private capital, a trust fund was created and hired Cal y Mayor y Asociados and Grupo Triada as an independent engineer to provide technical, administrative and financial support on behalf of the Technical Committee, during the process of construction, corroborating and ratifying the acceptance or rejection of the work according to quality control systems.

The high-spec Amozoc – Perote highway, which has a total length of 65.24 mi (105 km), connects the Perote beltway, in the State of Veracruz, with the Mexico - Orizaba highway (at mile 85.42, 137+455 km) near Amozoc city in the State of Puebla. Its total construction cost amounted to 1,798 million pesos, in its first phase was conceived as type A2, with crown width of 39.37 ft (12.0 m), road width of 22.96 ft (7.0 m), projected speed of 68.35 mi/hr (110 km/h), concrete asphalt pavement and has 12 bridges across streams and gullies, 90 large structures, 7 connecting overpasses and a 371.8 yd (340 m) long tunnel section 38 ft wide x 26.31 ft high (11.58 m wide x 8.02 m high).

Methodology for the Executive Project for the road adjustments in terminal 1, 2 and 3 of the international airport of CANCÚN

Through traffic conceptual design, Cal y Mayor y Asociados developed a scheme of operation and land control transportation, in order to efficiently serve needs in terminal 3 and provide an interface between the new road infrastructure with the existing one. As a result of this first phase, three alternatives were developed which included land use management, vehicular and pedestrian flows, landscaping, among others. These alternatives were evaluated in a multi-criteria decision analysis which facilitated the selection. In the second phase the executive and digital project was developed of road sections and connections, signaling and safety devices, parking, roofs and urban image.

With this conceptual traffic design of terminals 1, 2 and 3, in the medium term and the design of the Executive Project for terminal 3, ASUR, the airport concessionaire, aims to improve the operation and adapt the airport´s traffic system and parking lots to the special characteristics of demand of various services, for the purpose of providing a substantially improved and an integrated service of the three terminals, to efficiently attend international passengers, mostly from the United States of America and Europe; service whose demand, already exceeded existing infrastructure.

Overall coordination of the project, supervision of work and equipment of HOSPITAL REGIONAL DE ALTA ESPECIALIDAD DEL BAJIO (High Specialty Bajio Regional Hospital) and Support Unit

Mexico's Ministry of Health implemented the Service Delivery Program (PPS), the first hospital given in concession was the High Specialty Bajio Regional Hospital, which was granted for 25 years to Spanish group Acciona S.A., who retained the services of Cal y Mayor y Asociados to carry out the supervision of the construction work and equipment set up, both the building and all medical equipment.

The hospital and support unit have a potential demand of users of 2.5 million inhabitants of the State of Guanajuato and 2.5 million people in the States of Aguascalientes, Jalisco, Michoacan and Zacatecas. It has a capacity of 184 beds for children and adults, plus the support services. Developed on a 15.32 acres (6.2 hectares) area located in Boulevard Aereopuerto in Leon City, Guanajuato State and has a constructed area of 268,707.030 sq. feet (24,963.70 m 2).

Technical, legal and economic consulting services for the tendering and the concession of NORESTE road assets package

The Mexican Transportation and Communications Ministry (SCT) hired the consortium composed of Cal y Mayor y Asociados, Gulesserian Consultores S.C. and Thompson & Knight Abogados, S.C. for undertaking all necessary activities for defining the structure of the project for the bidding process, until the publication of the bid contest, and formalization of the concession title, as well as providing consultancy on the obligations of the title award during the construction phase. In addition, the SCT hired Cal y Mayor y Asociados, for developing studies of demand and base studies for all the highway sections involved, in order to implement Intelligent Transportation Systems in the network and also for the diagnosis and evaluation of pavement studies.

For the Noreste road assets package, the SCT grouped roads: Reynosa - Matamoros; Reynosa-Pharr International Bridge; Monterrey-Nuevo Laredo; Cadereyta-Reynosa and international bridge “Los Tomates Matamoros 3”, (highway sections located in the States of Nuevo León and Tamaulipas) aiming to provide investments in infrastructure. The grouped assets will be put out to tender and resources obtained will be used to settle debt with the Mexican Government Trust Fund for Concessioned Roads (FARAC) and surplus will be invested in new infrastructure projects.

Studies of: demand, means of transportation selection and social cost-benefit of the project selection of Boca del Rio´s TRANSPORTATION SYSTEM

In order to deal with the problem of urban public transport in the municipalities of Alvarado, Boca del Río, Veracruz and Medellín de Bravo, the municipality of Boca del Río hired Cal y Mayor y Asociados to carry out technical assessment of various alternative technologies in order to address the situation and evaluate the possibility of setting up an integrated system for municipalities. A detailed technical analysis was undertaken, where Cal y Mayor y Asociados identified the service needs, characteristics of supply and demand and different alternatives of public transport were presented and simulated. All these data was analyzed in a multi-criteria matrix that considered aspects such as: operation, investment cost, ease of implementation, social, economic and environmental impact.

The resulting alternative consisted of a tramway system that connects Alvarado, Boca del Río and Medellín de Bravo with Veracruz as this last city is the center of trade and labor of the region. In order to support the project, Cal y Mayor y Asociados developed studies to further define aspects such as vehicle technology, minimizing of pollutant emissions, information systems for the user, fare collection systems, among others, as well as the institutional, legal and regulatory framework, and the respective financial and budgetary scheme behind it.

Cal y Mayor y Asociados has been involved in various aspects of this project: in 2001 Cal y Mayor y Asociados calculated traffic density, which was updated in 2004 and subsequently, in 2006, developed economic assessment that was the basis for establishing the viability of the project; finally in 2007 the trust fund in charge of the project, hired Cal y Mayor y Asociados to serve as Independent Engineer during the construction, and had the responsibility to monitor and report if the work is done on time, according to norm and agreed quality.

This tunnel, first of its kind in Latin America, will have a total length of 5249.343 ft. (1,600 meters), of which 2624.671 ft. (800 m) are underground; it is comprised of four smart lanes and a central tunnel for services, built 67.68 ft. (20.60 m) deep down the riverbed. The total amount to be invested is estimated in nearly 175,000,000 usd (2,100 million pesos) – 12 pesos/usd exchange rate- in a public - private investment scheme.

At completion of construction, the project will achieve better regional communication between the different cities, which will bring economic and social improvements to more than 30 thousand inhabitants of the community of Allende, will solve the current problems with the road system in Coatzacoalcos, will allow ocean navigation in Coatzacoalcos River all the way through Minatitlán city achieving the objective of integrating waterfronts to new commercial and industrial development projects in a 12.43 mi (20 km) area.

Independent engineer and updating of traffic density and revenue of the Tunnel of ACAPULCO (TUCA)

Cal y Mayor y Asociados was hired as a technical supervisor of the operation and maintenance of the tunnel access to Acapulco - Las Cruces, to provide timely technical information to the Technical Committee for decision making, in order to maintain optimal tunnel and operation conditions, protecting its revenue at all times.

The activities that were carried out in order to oversee the operation and maintenance of the tunnel were the revision of the annual budgets of operation and maintenance, routine inspections of the infrastructure, minor maintenance, participation in extraordinary operation or maintenance situations of the tunnel and intervention in major maintenance. Cal y Mayor y Asociados established a work program that would allow continuous project intervention, thus enabling timely feedback to the trust fund so it could take appropriate action in the development of the project to minimize the effect of exceeding costs in the development of the work.

Interurban tunnel has a length of 96.88 ft. (2,953 m), height of 31.49 ft. (9.60 m) and a width of 44.61 ft. (13.60 m) connect with the Autopista del Sol, reducing by 25 minutes the Acapulco Mexico City travel time. The tunnel uses technology such as the following: fare collection systems using electronic card with optical scanning, metallic sensors for toll control, closed circuit television for the monitoring users from entry until exit, fire rescue equipment and dynamic signaling among others.

Supervision of the Executive Project; technical, legal, and financial structuring of the project, TULA–CIUDAD MANTE Highway

The Government of the State of Tamaulipas requested support from Cal y Mayor y Asociados a multidisciplinary team of consultants to carry out the following work

Supervision of the Executive project. To verify that the project takes place within the contracted time, satisfying institutional regulations, ensuring the technical and administrative development, and monitoring the correct assignation of the financial resources and contractual commitments.

Structuring of the project: Cal y Mayor y Asociados with Gulesseriam Consultores and Thompson & Knight, joined their experience to guide the state government in developing technical, legal and financial project structuring for bidding guidelines, bidding preparation process, contract signing and start of construction.

With these actions the Government of the State of Tamaulipas seeks to promote the construction of different infrastructure projects in the state grant modality with the support of the Infrastructure Investment Fund (FINFRA).

Project and inspection expansion works and urban renewal of Sabaneta corridor, first stage in line 1 of the MARACAIBO SUBWAY

Cal y Mayor y Asociados with Grupo AM, Consuvial S.A. and Badallsa, companies that for more than seven consecutive years have been hired by METROMARA (Maracaibo Subway) to monitor works on line 1; this project in Venezuela is over $300 million usd. Supervised works have comprised the corridor construction (first four years), road designs, river channeling and the necessary works for the expansion of the Sabaneta corridor with a cost of approximately $25 million usd.

Services provided were advice, consultancy, monitoring, measurement and control activities carried out by firms contracted by Maracaibo Subway. This first section of the road system comprises a route 4.03 miles (6.5 km). Starts at the Altos de la Vanega development and ends at the central part of Maracaibo City, and is composed of six stations. By this means of mass transport an average of 30,000 people will benefit daily in this first stage, nearly 665,500 people.

Consulting and technical assistance for the implementation of the TRANSPORTATION SYSTEM TROLMÉRIDA

Because of Copa America 2007 (soccer tournament) would be developed in Merida City (Venezuela), this city launched a new BRT trolleybus system known as TrolMerida. The guidelines of the Conmebol demanded that general access to the stadium should be either by foot or by public transportation.

Cal y Mayor y Asociados, as a member of the "TROLMERIDA Initiative Consortium” designed a contingency plan for stadium access defining two perimeters around the stadium, traffic detour plan and special public transportation routes which allowed entrance and exit of fans from the stadium. The traffic detour plan and signaling for vehicular traffic were first set, as well as the operational plan for public transportation that would allow moving of fans in and out of the stadium within specific time requirements, using available trolleybuses and buses. Micro-simulation model allowed to assess and refine the plan proposed in terms of operation and infrastructure management.

Despite being given scarce time to develop this project, Cal y Mayor y Asociados was able to design, evaluate, and present the plan with a video; after approval, local authorities implemented it successfully, since then this important project has been a reference for Cal y Mayor y Asociados because it shows that our company may address such situations in events of this magnitude.

CAL Y MAYOR Y ASOCIADOS to meet the needs of transportation in Zumpango, a highly competitive city, created the conceptual design, demand study and, under a socially beneficial point of view, developed the socio-economic evaluation of the project. For the achievement of objectives and scope determination, cutting-edge tools, of regional and local type such as micro-simulation and modeling techniques like Visum and Vissim were used. The volumes obtained for the short, medium and long term, made it possible to set the layout of the road, in terms of capacity and service levels, ensuring regional interaction as providers of goods and services and local mobility as an urban center.

GEOPOLIS was enabled with the necessary tools to develop a road scheme having "Boulevard Bicentenario” / “Paseo Zumpango" as the main road; through which the inter-regional connection of the new city is ensured with highways such as the Circuito Exterior Mexiquense, the Mexico–Querétaro Highway, Arco Norte and Mexico–Pachuca Highway; and from the urban point of view, articulates the internal connection roads by assuring mobility, connectivity, savings in travel time and costs of operation for the residents.

Diagnosis and/or evaluation of highways, expenditure program

Cal y Mayor y Asociados has participated in different stages of the development of major highway concession projects, under the scheme of PPS and in securitization processes, has carried out diagnostic studies for roads whose financial operations are over 2,500 million dollars. In the case of highways in operation, we have developed "Comprehensive Diagnostics" which allow assessing of the current physical condition of the road in order to determine the necessary actions and quantify investment required to maintain the roads in optimum conditions of operation in the future and/or during the concession period.

Experience has allowed us to develop a robust methodology that includes the use of high-tech equipment; this has generated confidence in financial institutions, credit rating agencies and investors who have analyzed and used the results to make investment decisions.

In Mexico we have carried out comprehensive highway diagnosis on 30 highways located in the States of Chiapas, Chihuahua, San Luis Potosí, Guerrero, Guanajuato, Monterrey, Tamaulipas, Morelos, Sonora, State of Mexico, Puebla, whose length exceeds 1,300 km.

Supervision of major routine maintenance and/or modernization of highways in operation

Cal y Mayor y Asociados has developed numerous contracts monitoring routine and periodic maintenance, ensuring adequate quality control as well as adherence to budgets and work programs; effectiveness is guaranteed with innovation, technical excellence and research, both in materials and in construction solutions.

The overall objective of this monitoring is to implement effective and creative controls so that conservation and/or modernization works are undertaken and/or equipped at the agreed cost, time and quality; ensuring the safety of users and facilitating quality decision making to the Highway Trusts in order to maintain and operate the highway in good conditions. The benefits that the supervision brings can be summarized in:

• Highway investment protection
• Certification of investment and quality of work
• Expenditure optimization for the maintenance and operation of the highway
• Comfort and safety for users
• Provide technical solution alternatives for the trust fund

In the past three years, Cal y Mayor y Asociados, has carried out the supervision of major routine maintenance and/or modernization of highways in operation in nearly 20 roads in Mexico and Central America.

Independent engineer for highways in operation

Cal y Mayor y Asociados has extensive experience as an Independent Engineer contributing in decision-making and in expenditure optimization, providing to the Technical Committee technical, administrative and financial information with all the requirements to maintain and operate highways in good condition.

The functions as Independent Engineer that Cal y Mayor y Asociados carries out are the inspection, verification and certification of the physical state of the infrastructure to ensure that the highway sections are operating in optimal conditions. Similarly, verifies the progress of maintenance work to estimate remedial action on issues.

Some of the leading projects in which we have operated as Independent Engineer we can mention: the Maxitunel of Acapulco, Toluca–Zitácuaro Highway, Durango– Yerbanís Highway, Gómez Palacio–Cuencamé Highway–Yerbanís Highway and Rio Verde Super–Highway–Cerritos, as well as 9 highways in the State of Chihuahua.

Cal y Mayor y Asociados conducted forecasting of traffic density and revenue for different border bridges in various States of Mexico. These studies made it possible to determine with a high degree of reliability, the potential and probable volume of trafic, as well as the expected evolution of demand, and the corresponding revenue forecast. The analysis was performed with a bi-national approach that included both what is happening in Mexico as in United States, particularly in border cities, which have an interdependent, relationship despite the border that divides them.

The international bridges project is integrated to the system of bridges in the border states, therefore the convenience to start operations one by one was determined in order to complete a comprehensive system. The annual average daily traffic for each bridge and vehicular composition, was estimated, particularly trucks; considering among other things, the location of the port area, the access roads, junctions, boulevards and fare/toll collection facilities.

The following projects can be mentioned on traffic density and revenue forecasting studies:

• Anzaldúas-Reynosa international bridge
• Nuevo Laredo III international bridge
• Matamoros-Brownsville port bridge-phase II