HSR: Maps

The California High Speed Rail Authority has proposed sending its trains through the San Gabriel Valley along the I-10 freeway or State Route 60. As proposed that high speed rail line will go east from Los Angeles Union Station to Ontario and then south to San Diego.

The maps on this page are recreations using Google Earth. They are based on information provided by the California High Speed Rail Authority during its presentation to Alhambra City Council in August 2010 and in its March 2011 Preliminary Alternatives Analysis Report for the Los Angeles to San Diego line.

Unlike maps provided by the Rail Authority, Google Earth allows me to create layers to quickly alternate between or compare the various options and the impact of each. Once finished, I will figure a way to cheaply share the .KML files.

Proposed Route

In March 2011, the Rail Authority decided to pursue only one of the three routes it initially proposed along the I-10 freeway. It plans to follow the center median of the I-10 freeway (previously labeled Option C). Most likely, the trains would travel on an elevated platform 50 to 75 feet above street level through the portion of the route between the 710 freeway and El Monte. At that time, it also decided not to consider any route outside the freeway footprint until exiting the freeway in El Monte.

The high speed trains would directly follow the Metrolink right of way and remain in the center of the freeway. It will have a 50MPH curve near Fremont Ave. Once beyond the curve, the trains will accelerate up to 150 MPH along the straight section from Fremont Ave. to El Monte. You can click the maps to see a larger size (choose Actions > View All Sizes).

Route

Map: 710 to El Monte Station

Fremont Ave. Curve.

Option C

El Monte Station

– If a station is built in El Monte, then additional space would be needed. This map overlay shows (1) 1,000 foot long set of 4 tracks and platform (dark green); and (2) 6,000 feet of additional 4 tracks to allow express trains to bypass the station (purple). If a station is not in El Monte, then only two sets of tracks will be built. The area to the right of the proposed El Monte train station is a residential neighborhood.
El Monte2


Historical Route Proposals

Initial plans in August 2010 proposed sending the trains through residential neighborhoods on either the north or south sides of the I-10 freeway or in the center of the I-10 freeway where it will take up the carpool lanes and the existing Metrolink tracks.
The Authority offered three different options to city staff:Option A, Option B, and Option C.

I recreated maps of the proposed route through Alhambra using Google Earth. These are mostly based on information provided by the California High Speed Rail Authority during its presentation to Alhambra City Council in August. It did not make the presentation available until late September.

Unlike the map provided by the Rail Authority, Google Earth allows me to create layers to quickly alternate between or compare the various options and the impact of each. Over time, I will also add zones showing the right of way as well as noise zones, which go to Valley on the north and in places to near Garvey on the south. Once finished, I will figure a way to share the .KML file.

Route Options:
The Authority told us it offered three different options to city staff. They refer to them as Option A, Option B, and Option C. In March 2011, the Rail Authority decided to officially eliminate Option A and B. It will only route its trains using Option C.

Option A: eliminated March 2011
Option A 100 MPH Curve
Option A is a 100 MPH curve near Fremont Ave. The curve would slice through the neighborhood between the I-10 freeway and Granada Park. Based on the graphic, it is very close to Granada Park. The train would then resume down the center of the freeway along the Metrolink right of way.

You can click the map to see a larger size (choose Actions > View All Sizes).

Option B: eliminated March 2011
Option B: 75 MPH Curve
Option B is a 75 MPH curve near Fremont Ave. The curve could have a northern approach, which would then lead the train along the southern edge of I-10 freeway. It could also have a southern approach which would then lead the train along the northern edge of the I-10. Both approaches are through residential neighborhoods and outside the freeway’s footprint, requiring destruction of many homes along the route.

You can click the map to see a larger size (choose Actions > View All Sizes).

Option C:
Option C

This image shows Option C, which would be a 50MPH curve near Fremont Ave. The curve would directly follow the Metrolink right of way and remain in the center of the freeway. You can click the map to see a larger size (choose Actions > View All Sizes).


Noise Contour Maps:

The following maps are approximations of noise contour maps. These provide a visual representation of where the high speed trains will be heard. The map also identifies some sensitive uses such as schools and hospitals. More maps and a post regarding train noise to come.

Option A: Elevated trains

NoiseMap Option A 2000 feet

High speed trains on elevated platforms can be clearly heard from 2,000 feet away according to Authority documentation. You can click the map to see a larger size (choose Actions > View All Sizes).

Note: It is possible that Metrolink diesel trains run on the elevated platform similar to how diesel engine commuter trains may run on the same platform with high speed trains in the S.F. Bay Area. In which case, the noise will likely go much further. The noise maps do not consider diesel trains, yet. In addition, the maps do not consider elevation of the hearer.


System Maps:
Los Angeles Union Station (LAUS) to San Diego Line.
LA to SD biz plan 41
This map was presented at scoping meetings in this and other communities. A scoping meeting was held in Monterey Park because it borders the 60 freeway. It shows all the alternative routes under consideration at the time of the scoping meetings. It had no routes along the I-10 corridor west of the 605 freeway. This map is on page 41 of the Authority’s December 2009 business plan. You can click the map to see a larger size (choose Actions > View All Sizes).

More Coming Soon …

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