The Los Angeles metro is great – so why aren’t people using it?

Just another day on the subway. Image: Getty.

LA Metro, the Los Angeles rail and bus transit system, is the third most comprehensive system in the entire USA, according to a study by the University of Minnesota.  Local online magazine LAist describes it as technically the “best accessible” transit system in the country, while the city's integrated bus system is “robust” and “incredibly extensive”.

Yet, in a metropolitan area of 13m people, only about 360,000 people use rail on an average weekday, and just 855,000 ride the bus. To put this into context, in New York, with a population of 20m, approximately 5m ride the subway on an average weekday.

What’s more, overall LA Metro ridership figures have been waning steadily. Bus ridership has declined – with 2m fewer bus boardings taking place in November 2016 than in the same month the previous year.

And although 700,000 more rail boardings took place in November 2016 compared to November 2015, LA Metro's total ridership fell by about 1.3m boardings.

So why is ridership down?

Thomas Rubin is a consultant with over four decades of experience in transport finance and government, who has written a report on the declining ridership. He argues that “the LA County Metropolitan Transportation Authority (MTA) is overfocused on building way too much passenger rail, way too quickly.” 

Los Angeles rail network is certainly on an expansion spree. Last year saw the Expo Line extended, connecting downtown LA to the Pacific Ocean; the Gold Line was also extended eastwards towards Azusa. And in early January, officials announced that the federal government would be giving Metro $1.6bn to accelerate construction of the Purple Line extension.

In November, what’s more, a large majority of Angelenos voted for Measure M, a countywide half-cent increase to the sales tax, which will be used to fund an ambitious $120bn plan to expand mass transit in the area.  

But rail expansion could affect bus services. Rubin argues that the MTA needs more money to finish the current rail projects – money it can “only raise by reducing bus service and increasing bus fares,” a move which would eventually drive away riders. “Bus service has simply never been a priority at MTA,” he said.

This may be a mistake, because the layout of the city limits rail ridership. “There are a little over 100 rail stations in Los Angeles County, but there are over 20,000 bus stops,” explains Rubin. As a result, there are very few areas in LA where you can access rail stations without motorised transportation of some kind.

When bus service is eliminated, or made less frequent, it makes it harder and more expensive for people to get to a rail station – so, rail ridership is also hurt,” Rubin adds. “What MTA has not done is expand ridership and keep fares low.”

The LA Metro rail map. 

Matthew Tinoco, a journalist with LAist who has commented extensively on urban planning and transport issues, agrees that inconvenience plays a role. “Why wait 30 minutes for a 20-minute bus ride when you could drive the distance in ten?

“If bus service was more consistent, or rail service more ubiquitous, I think Angelenos would flock to transit.”

The new Expo Line extension to Santa Monica is a case in point. “Very quickly the trains became overcrowded, as more people packed aboard the trains” than they had capacity to carry, Tinoco adds.

Economics and perceptions

The fact that the price of motor fuel has been relatively low in recent years has also contributed to Angelenos opting for their cars instead, believes Steve Boland, an associate with transportation planning consultancy Nelson/Nygaard and an expert in fixed-route transit service and multimodal access.

“The ridership number tends to decrease when the economy is up, as more people can afford cars,” he says. “California recently legalised driver’s licenses for undocumented immigrants and we’ve seen a spike in both numbers of license-holders and registered vehicles.”

Moreover, LA Metro is fighting against an image problem. Unreliability is partially responsible: Metro Buses are having a hard time staying on time, with 21.4 percent showing up late in 2015 and 22.7 percent in the early months of 2016.

Safety concerns is another reason. According to a recent Metro survey, almost 30 per cent of past riders left the system because they did not feel safe. The Blue Line has a  particularly bad reputation with regards to safety.

Some of these concerns are not well-founded. The number of serious crimes within the transit system is low and often much lower than in the surrounding community

In addition, it seems that Angelenos have limited knowledge with regards to Metro's reach, usability and offered services. As Matthew Tinoco says: “It turns out there's a gap between what some Angelenos think LA's transit system does, and what it actually does.”

“Metro has had a PR problem, but that's changing as people realise nothing can be done to make traffic better except build alternative transportation options,” he adds.

One last factor may be the popularity of Uber and Lyft. “Such services are huge here,” says Boland. “This is also a factor in recent ridership decline.”


Changing trains

It's hard to say what the future holds. LA Metro is still in the very early stages of building the sort of rapid transit network typical for a city of this size.

In 2015, LA City Council approved Mobility Plan 2035, an ambitious blueprint for its transportation future, that wants to shed LA’s “traditional automobile-centric approach and evolve into a modern, multimodal city”.

Steve Boland describes it as a “visionary” document. However, he stresses that the devil will be in the follow-through. “It calls for compromises in the allocation of space in the public right-of-way, and that’s something drivers and leaders in this region haven’t really been asked to do yet,” he said.

Measure M was a major landmark. It will fund over two dozen mass transit lines, rail extensions and 14 highway projects, as well as cycling infrastructure, bike share expansion, and a network of greenways.

“At some point we’re going to need a whole lot more bus lanes,” says Boland. “Even at Measure M build-out, trains won’t be doing most of the work.”

Ridership numbers will depend largely on the success of these measures - but LA Metro is often challenged by political roadblocks For example, building infrastructure in California is an immensely complicated and often litigious environment.

Homeowners often “litigate against projects they don't like,” explains Matthew Tinoco. “The city of Beverly Hills, an incorporated city within the county of Los Angeles, distinct from it and also a city incorporated in L.A County, spent the greater part of the past two decades suing LA Metro for their plans to build a subway beneath the city.”

“Right now, what Metro really needs is policy leadership, on street design, but also transit-supportive land use,” adds Boland. “It needs time to build that rapid transit network.

For his part, Tinoco thinks LA Metro is on the right track – though it should focus directly on greatly improving bus service. “If the service is good,” he concludes, “people will use it.”

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How bad is the air pollution on the average subway network?

The New York Subway. Image: Getty.

Four more major Indian cities will soon have their own metro lines, the country’s government has announced. On the other side of the Himalayas, Shanghai is building its 14th subway line, set to open in 2020, adding 38.5 km and 32 stations to the world’s largest subway network. And New Yorkers can finally enjoy their Second Avenue Subway line after waiting for almost 100 years for it to arrive.

In Europe alone, commuters in more than 60 cities use rail subways. Internationally, more than 120m people commute by them every day. We count around 4.8m riders per day in London, 5.3m in Paris, 6.8m in Tokyo, 9.7m in Moscow and 10m in Beijing.

Subways are vital for commuting in crowded cities, something that will become more and more important over time – according to a United Nations 2014 report, half of the world’s population is now urban. They can also play a part in reducing outdoor air pollution in large metropolises by helping to reduce motor-vehicle use.

Large amounts of breathable particles (particulate matter, or PM) and nitrogen dioxide (NO2), produced in part by industrial emissions and road traffic, are responsible for shortening the lifespans of city dwellers. Public transportation systems such as subways have thus seemed like a solution to reduce air pollution in the urban environment.

But what is the air like that we breathe underground, on the rail platforms and inside trains?

Mixed air quality

Over the last decade, several pioneering studies have monitored subway air quality across a range of cities in Europe, Asia and the Americas. The database is incomplete, but is growing and is already valuable.

Subway, Tokyo, 2016. Image: Mildiou/Flickr/creative commons.

For example, comparing air quality on subway, bus, tram and walking journeys from the same origin to the same destination in Barcelona, revealed that subway air had higher levels of air pollution than in trams or walking in the street, but slightly lower than those in buses. Similar lower values for subway environments compared to other public transport modes have been demonstrated by studies in Hong Kong, Mexico City, Istanbul and Santiago de Chile.

Of wheels and brakes

Such differences have been attributed to different wheel materials and braking mechanisms, as well as to variations in ventilation and air conditioning systems, but may also relate to differences in measurement campaign protocols and choice of sampling sites.

Second Avenue Subway in the making, New York, 2013. Image: MTA Capital Construction/Rehema Trimiew/Wikimedia Commons.

Key factors influencing subway air pollution will include station depth, date of construction, type of ventilation (natural/air conditioning), types of brakes (electromagnetic or conventional brake pads) and wheels (rubber or steel) used on the trains, train frequency and more recently the presence or absence of platform screen-door systems.

In particular, much subway particulate matter is sourced from moving train parts such as wheels and brake pads, as well as from the steel rails and power-supply materials, making the particles dominantly iron-containing.


To date, there is no clear epidemiological indication of abnormal health effects on underground workers and commuters. New York subway workers have been exposed to such air without significant observed impacts on their health, and no increased risk of lung cancer was found among subway train drivers in the Stockholm subway system.

But a note of caution is struck by the observations of scholars who found that employees working on the platforms of Stockholm underground, where PM concentrations were greatest, tended to have higher levels of risk markers for cardiovascular disease than ticket sellers and train drivers.

The dominantly ferrous particles are mixed with particles from a range of other sources, including rock ballast from the track, biological aerosols (such as bacteria and viruses), and air from the outdoors, and driven through the tunnel system on turbulent air currents generated by the trains themselves and ventilation systems.

Comparing platforms

The most extensive measurement programme on subway platforms to date has been carried out in the Barcelona subway system, where 30 stations with differing designs were studied under the frame of IMPROVE LIFE project with additional support from the AXA Research Fund.

It reveals substantial variations in particle-matter concentrations. The stations with just a single tunnel with one rail track separated from the platform by glass barrier systems showed on average half the concentration of such particles in comparison with conventional stations, which have no barrier between the platform and tracks. The use of air-conditioning has been shown to produce lower particle-matter concentrations inside carriages.

In trains where it is possible to open the windows, such as in Athens, concentrations can be shown generally to increase inside the train when passing through tunnels and more specifically when the train enters the tunnel at high speed.

According to their construction material, you may breath different kind of particles on various platforms worldwide. Image: London Tube/Wikimedia Commons.

Monitoring stations

Although there are no existing legal controls on air quality in the subway environment, research should be moving towards realistic methods of mitigating particle pollution. Our experience in the Barcelona subway system, with its considerable range of different station designs and operating ventilation systems, is that each platform has its own specific atmospheric micro environment.

To design solutions, one will need to take into account local conditions of each station. Only then can researchers assess the influences of pollution generated from moving train parts.

The ConversationSuch research is still growing and will increase as subway operating companies are now more aware about how cleaner air leads directly to better health for city commuters.

Fulvio Amato is a tenured scientist at the Spanish National Research CouncilTeresa Moreno is a tenured scientist at the Institute of Environmental Assessment and Water Research (IDAEA), Spanish Scientific Research Council CSIC.

This article was originally published on The Conversation. Read the original article.