Archive for the ‘Light rail vs. bus rapid transit’ Category

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Project Connect’s Orange Line operating cost assumptions seem to fail plausibility test

3 December 2019

Cover of Project Connect’s O&M cost methodology and assumptions report. Screen capture by ARN.


This analysis has been adapted and revised from comments originally posted to the #ATXTransit listserv by Lyndon Henry, a technical consultant to the Light Rail Now Project and contributing editor to Austin Rail Now (ARN).

For approximately the past year, Capital Metro’s planning program, Project Connect, has been analyzing two travel corridors for major high-capacity rapid transit investment – the Orange Line (basically following the North Lamar-Guadalupe-South Congress corridor) and the Blue Line (roughly following the Red River-San Jacinto/Trinity corridor through downtown and then the Riverside corridor out to ABIA). A federally required Alternatives Analysis has been undertaken by a consulting team led by AECOM to recommend a modal system choice between light rail transit (LRT) and bus rapid transit (BRT), as well as other features and service characteristics such as vehicle types, station locations, alignments, and the capital costs and operating and maintenance (O&M) costs of each alternative.

Recently the agency released as public information selected details, including methodological procedures and cost assumptions. These have prompted scrutiny by community professionals and activists, particularly in regard to important O&M cost assumptions. In some cases these assumptions have been called into question.

For example, a 13 November posting by research analyst Julio Gonzalez Altamirano (JGA) on his Informatx.org website presented an extensive critical analysis. This resulted in two major findings:

• Project Connect’s BRT revenue hour cost estimate is lower than the national average by 26%. Project Connect does not explain its rationale for the methodological choices that lead to the lower rate.

• Project Connect’s use of a flat passenger car revenue hour rate to calculate LRT costs obfuscates the economies of scale associated with multi-car LRT trains. This is a change from the approach taken by Project Connect in 2013-2014. The new method makes Blue Line LRT appear more productive and Orange Line LRT less productive than an approach that recognizes the cost advantages of LRT scale (e.g. multi-car trains). Project Connect does not explain the rationale for the methodological switch or why its current approach will generate more accurate estimates.

These findings are broadly in line with the results of ARN’s own research into Project Connect’s O&M cost methodology and resultant assumptions, particularly with respect to the Orange Line surface LRT and BRT alternatives. Our analysis relied primarily on data for appropriate peer systems to Austin, reported in the Federal Transit Administration’s National Transit Database (NTD).

Basically, we find that Project Connect’s cost per vehicle-hour assumptions consistently seem to overestimate LRT costs by more than 51% and underestimate BRT costs by over 26%. The bottom-line result is to skew Project Connect’s O&M cost assumptions as much as 70% in favor of the BRT alternative. This produces a relatively huge disparity in evaluating the alternatives, and challenges plausibility. Details of our analysis, plus conclusions and a recommendation, are presented below.

Methodology

Operational configurations and service cycles affect O&M costs, including costs per vehicle-mile. ARN’s methodology has differed somewhat from JGA’s. Most importantly, from the 2017 NTD (latest currently available), ARN selected seven new-start LRT “peer” systems based on both urban characteristics and surface-running alignment and operational configurations that we judged to more closely match those of Austin and the proposed Orange Line surface LRT: Denver, Houston, Minneapolis, Phoenix, Portland, Sacramento, Salt Lake City. Although some have urban or suburban branches on exclusive alignments, all have significant segments in urban streets.

These seven systems have been selected in part for their urban, extensively on-surface, and in some cases predominantly street-routed character (similar to the alignment proposed for Austin’s Orange Line). Generally comparable urban population and density were also an important factor. As state capitals, Denver, Sacramento, Phoenix, Salt Lake City, and St. Paul (included in the Minneapolis-St. Paul system) also make good peer cities for Austin. Other new-start LRT systems that might have some sections on city streets but operate predominantly over extensive regional lines or grade-separated alignments were not considered as fully comparable cost models.

In contrast to our peer-systems approach, Project Connect states that, via its own methodology, “O&M unit costs for LRT service reflect a weighted national average cost per revenue hour ….” [Orange Line Operating and Maintenance Costs, 30 Oct. 2019] Apparently these costs are based on NTD data.

However, if Project Connect calculated its average from national data of all LRT systems reported in the NTD, this would have included a widely disparate collection of O&M and other data, much of it starkly dissimilar to Austin’s demographics and proposed LRT operational conditions. For example, legacy systems (remnants of historic surface electric railways dating back to the late 19th or early 20th century) such as those in Boston, San Francisco, Newark, and Pittsburgh retain a variety of older operating characteristics (e.g., onboard fare collection by train operators) that drive their vehicle-hour costs significantly higher than the average of modern new-start systems.

Other problems with such an indiscriminate approach include differences in alignment engineering configuration. Accordingly, we assessed some modern new-start LRT systems to be less suitable O&M vehicle-hour cost models for Austin’s proposed street-routed LRT Orange Line, including several we excluded particularly because of their proportionately more extensive subway and elevated segments: Buffalo, Los Angeles, St. Louis, Dallas, Seattle.

Nevertheless, despite what appear to be serious weaknesses with its own methodological assumptions, Project Connect has calculated an O&M cost per vehicle-hour of $284.15 (2017) for its Orange Line LRT surface alternative.

As regards BRT, in our judgement eight of the operational configurations of BRT systems reported in the 2017 NTD seemed to conform to the Orange Line BRT surface operating proposal, and can be assumed to represent peer systems with respect to Austin. These BRT services – operating in Cleveland, Eugene, Ft. Collins, Grand Rapids, Hartford, Kansas City, Los Angeles, and Orlando – thus provide an appropriate basis for comparing and evaluating Project Connect’s Orange Line LRT and BRT scenarios. New York City was excluded because its exceptionally high density, population size, and vast multi-model transit system are far out of proportion to Austin’s conditions. Boston’s disconnected system, partly operating as a trolleybus subway, also seemed inappropriate as a peer system. Likewise the Roaring Fork Transportation Authority’s operation, a basically rural system more closely resembling a regional or intercity motor coach service than an urban transit service, was also excluded. Data for the eight peer systems were used to develop metrics for comparison with Project Connect’s assumed cost inputs.

For 2017 O&M cost per vehicle-hour for Project Connect’s Orange Line BRT surface alternative, Project Connect’s own assumptions (based on information from CMTA and NTD) amount to an effective estimate of $119.10, as JGA has converted from Project Connect’s 2028 estimates.

To calculate current national averages and metrics for comparison, we’ve totaled current costs and other relevant values for the target LRT and BRT peer groups from National Transit Database (NTD) profile data, then calculated averages from those totals. All costs discussed are presented in 2017 dollars.

Results

LRT: Average actual 2017 O&M cost per vehicle-hour for the seven peer LRT systems is $187.52, 34.0% lower than Project Connect’s assumed cost of $284.15 for the Orange Line surface LRT option.

BRT: Average actual 2017 O&M cost per vehicle hour for the eight peer BRT systems is $162.23, 36.2% higher than Project Connect’s assumed cost estimate of $119.10 for the Orange Line surface BRT option.

LRT vehicle-costs/hour are typically higher than for buses mainly because LRT cars are larger and stations are also usually larger, creating higher maintenance costs. (These characteristics generally stem from LRT’s higher capacity and propensity to attract greater passenger volumes.) The ratio of actual NTD-reported peer-system LRT to BRT costs is 1.16. However, Project Connect’s cost assumptions amount to an LRT:BRT ratio of 2.39 – in other words, approximately twice the cost ratio in actual operating experience. The disparity between Project Connect’s estimates and costs experienced in actual operations is illustrated in the graph below.


Graphic illustration of disparity between Project Connect’s O&M unit-cost estimates and actual reality of costs experienced by actual operations of comparable peer LRT and BRT systems. Graph: ARN. (Click to enlarge.)


Conclusions and recommendation

Project Connect’s assumption for cost per vehicle-hour appears to substantially underestimate BRT and overestimate LRT – and this has dramatic consequences for the agency’s overall cost model results, seemingly skewing the evaluatory process and calling into question the plausibility and validity of the agency’s O&M cost analysis. The table below, presenting Project Connect’s comprehensive O&M cost calculations for the Orange Line alternatives, illustrates how the differential in O&M cost-per-vehicle-hour estimates translate into enormous differences of tens of millions of dollars in annual O&M cost assumptions.


Table of O&M cost calculations from Project Connect’s report. Screen capture by ARN. (Click to enlarge.)


We would strongly recommend that these assumptions and the overall O&M analysis of these alternatives be reviewed and revised – particularly by basing cost estimates on appropriate peer systems relevant to the LRT and BRT alternatives proposed by Project Connect for the Orange Line.

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Blue Line Should Branch from Orange Line Urban Rail — Nix the Redundant Infrastructure!

15 August 2019

Map shows ARN’s alternative proposed urban rail configuration in Core Area connecting Orange Line (Tech Ridge to Slaughter Lane) with Blue Line (UT campus through Core Area and East Riverside to ABIA). Both lines would share First St. (Drake) Bridge over river, thus eliminating need for an expensive redundant Blue Line bridge. Blue Line would branch from Orange Line at Dean Keaton and at W. 4th St. to serve east side of Core Area and provide link to airport. Map: ARN.
(Click image to enlarge)


By Austin Rail Now

Commentary slightly adapted from one-page handout originally produced by ARN and distributed to participants in Project Connect’s Blue Line Workshop at ACC Highland, 31 July 2019.

► Orange Line as primary corridor — Urban rail installation in the Orange Line alignment (N. Lamar-Guadalupe-Lamar-South Congress/NL-G-SC) must be prioritized. Positioned as Austin’s major central local corridor, between I-35 to the east and Loop 1 (MoPac) to the west, the Orange Line corridor is the center city’s 3rd-heaviest north-south travel corridor (after I-35 and MoPac). The City of Austin has repeatedly emphasized that this is the primary local traffic corridor in central-city Austin, with exceptionally heavy traffic at maximum capacity for over the past 2 decades. North Lamar alone is ranked by Texas Transportation Institute as one of the most congested arterials in Texas. With Austin’s highest total employment density on Guadalupe-Lamar, an urban rail line there alone could serve 31% of all Austin jobs. It would also serve the highest-density residential concentrations in the city — including the West Campus, ranking the 3rd-highest in residential neighborhood density among major Texas cities.
https://austinrailnow.com/2014/10/13/latest-tti-data-confirm-guadalupe-lamar-is-central-local-arterial-corridor-with-heaviest-travel/
http://centralaustincdc.org/transportation/austin_urban_rail.htm
https://austinrailnow.com/2019/07/29/future-proof-austins-mobility-with-urban-rail-not-infrastructure-for-techno-fantasies/

► Light rail transit (LRT) — For over 30 years, urban rail in the NL-G-SC (currently designated Orange Line) alignment has been regarded as the key central spine for an eventual citywide and regional urban rail network using well-proven, widely deployed, effective, affordable light rail transit (LRT) technology. Particularly with little to no need for major civil works, the Orange Line is ideal for a surface-installed LRT starter line.

Since initially selected as Capital Metro’s Locally Preferred Alternative in 1989, LRT has remained Austin’s premier major high-capacity transit vision. LRT has demonstrated numerous key advantages over bus rapid transit (BRT). And unlike many “gadget” alternatives, LRT is well-proven in service, a readily available technology, and non-proprietary. (In contrast, “autonomous BRT” has been neither deployed commercially nor even tested.) Compared with buses, LRT systems provide higher capacity and are faster, more user-friendly and more comfortable to access and ride. On average, ridership on new LRT systems is 127% higher than on BRT. LRT is also more cost-effective – average operating cost of new LRT systems is 10% lower than for BRT.
http://www.lightrailnow.org/industry_issues.htm#ridership
http://www.lightrailnow.org/industry_issues.htm#mode-preference
http://www.vtpi.org/bus_rail.pdfAPTA/National Transit Database

► Alternate Blue Line — Simply trying to resurrect the failed 2014 Highland-Riverside plan is not a prudent option. The Blue Line makes the most sense if it shares segments of the Orange Line, branching from it to serve the eastside of the Core Area and UT, and the East Riverside corridor (and ultimately ABIA). Running westward from ABIA on East Riverside, the Blue Line in this proposal would join the Orange Line south of the S.1st St. (Drake) Bridge. Sharing trackage across the bridge, it would proceed northward to Republic Square, where it would turn east to the San Jacinto/Trinity arterial pair, then turn northward and proceed to serve the Medical District and the UT East Campus. At Dean Keaton, the alignment would then turn west and travel on Dean Keaton toward Guadalupe St. to rejoin the Orange Line, proceeding northward from there. Access to-from ACC Highland could be made available via transfer with Red Line trains (with improved frequency) or various bus alternatives (from UT campus or Crestview).

► Eliminate redundant infrastructure — Major advantages of this alternative include more efficient operation, better passenger interconnection between Blue and Orange Lines, and very significant cost savings through eliminating redundancy: the proposed bridge over the Colorado, approximately three miles of line infrastructure paralleling the Orange Line, and five stations.

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“Future-Proof” Austin’s Mobility With Urban Rail — Not Infrastructure for Techno-Fantasies

29 July 2019

Orange Line (north-south route indicated within black outline) shown within Project Connect’s map of proposed regional system. Excerpted and edited by ARN.


By Austin Rail Now

Commentary originally produced by ARN and distributed (as one-page handout) to participants in Project Connect’s Orange Line Workshop at Austin Central Library, 17 July 2019.

♦ Light rail transit (LRT) — This well-proven, widely deployed, effective, affordable urban rail alternative has been proposed for the Orange Line (N. Lamar-Guadalupe-S. Congress) corridor for 30 years. Since selected as Capital Metro’s Locally Preferred Alternative in 1989, LRT has remained Austin’s premier major high-capacity transit vision. In early 2018, Project Connect 2’s proposal for LRT in the Orange Line corridor received widespread community acclaim. However, the proposal was subsequently quashed by Capital Metro, which proceeded to restart the Project Connect process.

As noted below, LRT has demonstrated numerous key advantages over bus rapid transit (BRT). And unlike many “gadget” alternatives, LRT is well-proven in public service, a readily available technology, and non-proprietary. (In contrast, “autonomous BRT” has been neither deployed commercially nor even tested.)

♦ Ridership — On average, light rail systems have excelled in attracting passengers, especially new riders who have access to a car but choose to ride LRT. Compared with buses, LRT systems are more user-friendly, more comfortable to access and ride, and perceived as safer and more reliable. On average, ridership on new LRT systems is 127% higher than on bus rapid transit (BRT).
http://www.lightrailnow.org/industry_issues.htm#ridershiphttp://www.lightrailnow.org/industry_issues.htm#mode-preference
APTA/NTD

♦ Affordability — Especially for a city of Austin’s size, light rail has typically provided an affordable capital cost opportunity to install urban rail (costs similar to “real” BRT), with significantly lower operating + maintenance cost per passenger-mile compared to buses. Average operating cost of new LRT systems is 10% lower than for BRT. The lower capital and operational costs of a predominantly surface LRT system make it the ideal affordable mode for future expansion of a rail transit network throughout the Austin metro area.
http://www.vtpi.org/bus_rail.pdfNational Transit Database


Average operational cost of LRT is 10% lower than for BRT. Average costs calculated by ARN from data reported to National Transit Database, 2016.


♦ Environment & energy — Evidence shows LRT systems have the lowest air pollution and noise impacts, preserve neighborhoods and urban quality of life, and reduce energy usage per passenger-mile compared with cars and buses. LRT especially avoids the energy-wasting effects of hysteresis and asbestos pollution of rubber-tire transport.
http://www.lightrailnow.org/industry_issues.htm#environmental-impactshttp://onlinepubs.trb.org/onlinepubs/circulars/ec145.pdf

♦ Urban benefits — In contrast to bus operations (including BRT), light rail systems have demonstrated a consistent, significant, superlative propensity to attract adjacent development and economic growth, and help shape and guide a changing urban landscape.
http://www.lightrailnow.org/industry_issues.htm#urbanhttp://onlinepubs.trb.org/onlinepubs/Conferences/2019/LRT/LyndonHenry.pdf

♦ Capacity — Compared to both buses and “gadget” modes, LRT has far higher capacity in normal service scenarios and greater capability to accommodate future demand.
https://www.thoughtco.com/passenger-capacity-of-transit-2798765

♦ Guadalupe-Lamar (G-L) corridor — Positioned as Austin’s major central local corridor, between I-35 to the east and Loop 1 (MoPac) to the west, G-L has repeatedly been regarded as ideal for an LRT surface starter line (with no need for major civil works) to create the key central spine for an eventually citywide and regional urban rail network. It’s the center city’s 3rd-heaviest north-south corridor. The City of Austin (COA) has repeatedly emphasized that G-L is the primary local traffic corridor in central-city Austin, with exceptionally heavy traffic at maximum capacity for over the past 2 decades. Texas Transportation Institute ranks North Lamar as one of the most congested arterials in Texas. Urban rail is essential to maintaining mobility in this crucial corridor.
https://austinrailnow.com/2014/10/13/latest-tti-data-confirm-guadalupe-lamar-is-central-local-arterial-corridor-with-heaviest-travel/

♦ Employment & population density — With Austin’s highest total employment density on Guadalupe-Lamar, an urban rail line could serve 31% of all Austin jobs. An urban rail line in this corridor would serve the highest-density residential concentrations in the city — including the West Campus, ranking as the 3rd-highest in residential neighborhood density among major Texas cities.
http://centralaustincdc.org/transportation/austin_urban_rail.htm