It would be very comfortable as Mexico have local trains as well Madrid.
Bellow is a map made by me

cheers from ROMANIA

http://i489.photobucket.com/albums/rr259/buchetfotografic/aero2.jpg

Yes, but there are many factors that make this to be just a dream.

-Cost
-Politic
-No vision to the future

The only actual line of Suburban Rail (S1) have many problems, as bad planneation, bad infraestructure, few and unplanned feeder lines, and more.

At the moment, there are two lines in the licitation process, that will cover only a small portion of the metropolitan zone.

Tren Suburbano Sistema 1(S1)
Route: Buenavista - Cuautitlán
Length: 25 km
Stations: 7
Cost:
-Short trip: $5.50MXN (0.40 USD)
-Long trip: $12.50MSN (0.90 USD)
http://www.fsuburbanos.com/img/operaciones/mapa_estaciones.gif

Trains at Buenavista Terminal. As you can see, the station is not finished yet...
http://img189.imageshack.us/img189/2736/moto2187.jpg

Buenavista lobby
http://upload.wikimedia.org/wikipedia/commons/thumb/0/0f/Interior_de_la_estaci%C3%B3n_de_tren_Buenavista.jpg/800px-Interior_de_la_estaci%C3%B3n_de_tren_Buenavista.jpg

One of the feeder lines
http://img195.imageshack.us/img195/1562/moto2185.jpg

Outside of Cuautitlán Station. The most anti-aesthetical stations in the world.
http://i291.photobucket.com/albums/ll289/hook89/moto_2063.jpg

Never been To DF, but i can assure you that a Cercanias System would perfectly fit in Mexico DF, making a perfecto conbination with the extensive metro system that the city already has.

Any politician making that dreamed cercanias network becoming tru will make people of DF life´s much easier and confortable.

BTW, another latinamerican city where a Cercanias system would be also very needed is, under my point of view, Santiago the Chile, that as in DF, is doing a great job concerning its metro system, but right now lacks a cercanias system, and i was told, and that´s a real pity, that until the 60´s or so Santiago has some suburban train lines, and they disarm then.

Now it´s time to Rebuild!

More than a local railways system cercanías) this is a proposal for a regional network (connecting cities more than 100 km from Mexico City).

The line opnened last year has not arrive to its maximul potential due to political questions (not a real organization of the feeder transport lines and competence from buses)....

@Motorways: Actually Santiago does have a Cercanías -Regional train, the Metrotrén, between Santiago and Rancagua (with less frequent services to San Fernando, south of Santiago). There have been plans to build new lines to Melipilla to the west and possibly to Batuco in the north, but they have been shelved for a while.

@LucianT: Thank you (mulţumesc) for the map; as chavito explained, your map has a more regional scope than a suburban (cercanías) one; however, Mexico City really needs a suburban rail network (a regional network too), and last year we opened the first section of a 240km. planned network. Due to economic and politic constrains the second and third lines have been postponed, but they are still projected in the short term (3-5 years).

Some comments on your map: a regional line is needed to the west, to the city of Toluca (a rail line exists), and the line to Cuernavaca (named C3) is already converted to a "rail trail" or cycle path (in Spain is called "vía verde"). Probably a new alignment will be needed if a line is projected to Puebla. For the moment, the most feasible regional line that could be built or adapted for regional passenger traffic would be the "C2" line to Pachuca. Line C4 to Tula, and possible to Querétaro (although this would be a more intercity line) is also possible in the medium term; no official plans exist nevertheless.

Regards!

@LucianT: Thank you (mulţumesc) for the map; as chavito explained, your map has a more regional scope than a suburban (cercanías) one; however, Mexico City really needs a suburban rail network (a regional network too), and last year we opened the first section of a 240km. planned network. Due to economic and politic constrains the second and third lines have been postponed, but they are still projected in the short term (3-5 years).

Some comments on your map: a regional line is needed to the west, to the city of Toluca (a rail line exists), and the line to Cuernavaca (named C3) is already converted to a "rail trail" or cycle path (in Spain is called "vía verde"). Probably a new alignment will be needed if a line is projected to Puebla. For the moment, the most feasible regional line that could be built or adapted for regional passenger traffic would be the "C2" line to Pachuca. Line C4 to Tula, and possible to Querétaro (although this would be a more intercity line) is also possible in the medium term; no official plans exist nevertheless.

Regards!

Hahaha ,cu placere(you're welcome my friend )I'm very excited to make maps ,projects about metropils.So Mexico is one of my favourite cities.I've never been there and i hope so the political situation maybe it will changing in good sense. I BEG OF YOU -IF YOU HAVE ANI PICTURE FROM RAILWAY STATION OF MEXICO CITY such as UNION or CENTRAL?May you post here?
cheers

HOW ABOUT this frame of map? This is a new amplasament of C1 to Puebla and C3 to Cuernavaca.

http://i489.photobucket.com/albums/rr259/buchetfotografic/aero2-1.jpg

BTW, another latinamerican city where a Cercanias system would be also very needed is, under my point of view, Santiago the Chile, that as in DF, is doing a great job concerning its metro system, but right now lacks a cercanias system, and i was told, and that´s a real pity, that until the 60´s or so Santiago has some suburban train lines, and they disarm then.

Now it´s time to Rebuild!

YES, good point Mororway.Santiago is like some an european city,clean ,modern,safe and very beautiful city.I was there in 2006 as a tourist,i was excited to fish mercado,historical monuments.Very comfortable city and very very cool!Both with Buenos Aires are the most interesting cities from Latin America.
I HAVE A MAP AND A PICTURE for you(Taken by Wikipedia)

http://i489.photobucket.com/albums/rr259/buchetfotografic/santiagodechile.jpg
http://upload.wikimedia.org/wikipedia/commons/7/71/Nuevatorresstgo.jpg

HOW ABOUT this frame of map? This is a new amplasament of C1 to Puebla and C3 to Cuernavaca.

That route to Puebla is ok. It can be connected with the future terminal of the S3 (Neza-Chalco),... going by Tlaxcala would take too much time...

I VE made today maps with big scale with some changing in routes.
WATCH
DOWNTOWN AREA OF MEXICO
http://i489.photobucket.com/albums/rr259/buchetfotografic/ciudaddemexico.jpg

C5 to west of metropolitan area
http://i489.photobucket.com/albums/rr259/buchetfotografic/BOLDESTI3.jpg
http://i489.photobucket.com/albums/rr259/buchetfotografic/ghgfhghg.jpg

Mexico has one of the most conservative governments in North America. There is no way it would make the kind of large scale federal investment necessary to build such a system. For shame. Calderon just wants to privatize everything and make the government even smaller.

Mexico has one of the most conservative governments in North America. There is no way it would make the kind of large scale federal investment necessary to build such a system. For shame. Calderon just wants to privatize everything and make the government even smaller.

The question is not if the government is conservative or not. For example railways privatization was handled by the PRI government.

Main problems are the lack of funds and the bus companies loobying against railways. Actual government has announced the second and third phase of the Tren Suburbano, but it has been delayed... and the no cooperation between the governments involved in the metropolitan area local trains network development (left, center and right) is a real shame...

The question is not if the government is conservative or not. For example railways privatization was handled by the PRI government.

Main problems are the lack of funds and the bus companies loobying against railways. Actual government has announced the second and third phase of the Tren Suburbano, but it has been delayed... and the no cooperation between the governments involved in the metropolitan area local trains network development (left, center and right) is a real shame...

That's right!

+1

And LucianT: This map shows what is considered Mexico City, the Distrito Federal(Federal District), municipalities of Estado de México(México State) and one municipality of Estado de Hidalgo(Hidalgo State).
http://upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Zona_Metropolitana_de_M%C3%A9xico.svg/523px-Zona_Metropolitana_de_M%C3%A9xico.svg.png


Toluca, Puebla, Cuernavaca and other cities and towns are not part of México City, and what you are proposing beyond those limits are regional conections, not cercanias...

BTW, i like your idea of the conection to Toluca and Ixtlahuaca

It does not matter the name of the train network.

Mexico City metropolitan area (including municipalities in Estado de México) need a local / regional railway network to create an alternative to private car and bus lines.

That's right!

+1

And LucianT: This map shows what is considered Mexico City, the Distrito Federal(Federal District), municipalities of Estado de México(México State) and one municipality of Estado de Hidalgo(Hidalgo State).

Toluca, Puebla, Cuernavaca and other cities and towns are not part of México City, and what you are proposing beyond those limits are regional conections, not cercanias...

BTW, i like your idea of the conection to Toluca and Ixtlahuaca

My friend Erzei it's not about strictly cercanias as well as in Madrid,it's about only regional trains who made conexion between Mexico proper-city and metropolitanb area and megalopolis area.How about the conexion betwenn Mexico-Queretarro(Cheretaru) or Leon or more far-Guadalajara.It's a good opinion

Yeah, any infraestructure proyect will be welcome...

There was a proyect some years ago for a bullet train between Guadalajara and México, but it was discharted due to inviability and cost

And with the Suburbano 1(S1), the authorities of Hidalgo mentioned that the network could be expanded to Tizayuca.

Feeder lines to Line 1 are almost ready.