Comparison of Light Rail Streetcar Against Shared Autonomous Vehicle Fleet for Brooklyn–Queens Connector in New York City

2017 ◽  
Vol 2650 (1) ◽  
pp. 142-151 ◽  
Author(s):  
Lucas Mestres Mendes ◽  
Manel Rivera Bennàssar ◽  
Joseph Y. J. Chow
Keyword(s):  
New York ◽  
New York City ◽  
York City ◽  
Autonomous Vehicles ◽  
Autonomous Vehicle ◽  
Light Rail ◽  
Rail System ◽  
Total Travel Time ◽  
Vehicle Fleet ◽  
Event Based

Policy makers predict that autonomous vehicles will have significant market penetration in the next decade or so. In several simulation studies shared autonomous vehicle fleets have been shown to be effective public transit alternatives. This study compared the effectiveness of a shared autonomous vehicle fleet with an upcoming transit project proposed in New York City, the Brooklyn–Queens Connector light rail project. The study developed an event-based simulation model to compare the performance of the shared autonomous vehicle system with the light rail system under the same demand patterns, route alignment, and operating speeds. The simulation experiments revealed that a shared autonomous vehicle fleet of 500 vehicles of 12-person capacity (consistent with the EZ10 vehicle) would be needed to match the 39-vehicle light rail system if operated as a fixed-route system. However, as a demand-responsive system, a fleet of only 150 vehicles would lead to the same total travel time (22 min) as the 39-vehicle fleet light rail system. Furthermore, a fleet of 450 12-person vehicles in a demand-responsive operation would have the same average wait times while reducing total travel times by 36%. The implications for system resiliency, idle vehicle allocation, and vehicle modularity are discussed.

Is There a Limit to Adoption of Dynamic Ridesharing Systems? Evidence from Analysis of Uber Demand Data from New York City

2018 ◽  
Vol 2672 (42) ◽  
pp. 127-136 ◽  
Author(s):  
Raymond Gerte ◽  
Karthik C. Konduri ◽  
Naveen Eluru
Keyword(s):  
New York ◽  
New York City ◽  
York City ◽  
Transportation Networks ◽  
Autonomous Vehicle ◽  
Temporal Trends ◽  
Technological Advances ◽  
Vehicle Operation ◽  
Bike Sharing ◽  
And Shifts

Recent technological advances have paved the way for new mobility alternatives within established transportation networks, including on-demand ride hailing/sharing (e.g., Uber, Lyft) and citywide bike sharing. Common across these innovative modes is a lack of direct ownership by the user; in each of these mobility offerings, a resource not owned by the end users’ is shared for fulfilling travel needs. This concept has flourished and is being hailed as a potential option for autonomous vehicle operation moving forward. However, substantial investigation into how new shared modes affect travel behaviors and integrate into existing transportation networks is lacking. This paper explores whether the growth in the adoption and usage of these modes is unbounded, or if there is a limit to their uptake. Recent trends and shifts in Uber demand usage from New York City were investigated to explore the hypothesis. Using publicly available data about Uber trips, temporal trends in the weekly demand for Uber were explored in the borough of Manhattan. A panel-based random effects model accounting for both heteroscedasticity and autocorrelation effects was estimated wherein weekly demand was expressed as a function of a variety of demographic, land use, and environmental factors. It was observed that demand appeared to initially increase after the introduction of Uber, but seemed to have stagnated and waned over time in heavily residential portions of the island, contradicting the observed macroscopic unbounded growth. The implications extend beyond already existing fully shared systems and also affect the planning of future mobility offerings.

An Important Armenian MS. with Greek Miniatures

1942 ◽  
Vol 74 (3-4) ◽  
pp. 155-162
Author(s):  
H. Kurdian
Keyword(s):  
New York ◽  
New York City ◽  
York City ◽  
Christian Iconography

In 1941 while in New York City I was fortunate enough to purchase an Armenian MS. which I believe will be of interest to students of Eastern Christian iconography.

Hospitals: N.Y. Appellate Court Denies Move to Privatize Public Hospital

1999 ◽  
Vol 27 (2) ◽  
pp. 202-203
Author(s):  
Robert Chatham
Keyword(s):  
New York ◽  
New York City ◽  
York City ◽  
Public Health System ◽  
Municipal Hospital ◽  
The Public ◽  
Public Benefit ◽  
For Profit ◽  
Benefit Corporation ◽  
The City

The Court of Appeals of New York held, in Council of the City of New York u. Giuliani, slip op. 02634, 1999 WL 179257 (N.Y. Mar. 30, 1999), that New York City may not privatize a public city hospital without state statutory authorization. The court found invalid a sublease of a municipal hospital operated by a public benefit corporation to a private, for-profit entity. The court reasoned that the controlling statute prescribed the operation of a municipal hospital as a government function that must be fulfilled by the public benefit corporation as long as it exists, and nothing short of legislative action could put an end to the corporation's existence.In 1969, the New York State legislature enacted the Health and Hospitals Corporation Act (HHCA), establishing the New York City Health and Hospitals Corporation (HHC) as an attempt to improve the New York City public health system. Thirty years later, on a renewed perception that the public health system was once again lacking, the city administration approved a sublease of Coney Island Hospital from HHC to PHS New York, Inc. (PHS), a private, for-profit entity.

Cultural Competence Needed to Distinguish Disorder from Difference: Beyond Kumbaya

2015 ◽  
Vol 22 (2) ◽  
pp. 64-76 ◽  
Author(s):  
Catherine J. Crowley ◽  
Kristin Guest ◽  
Kenay Sudler
Keyword(s):  
New York ◽  
New York City ◽  
Public Schools ◽  
Cultural Competence ◽  
York City ◽  
Cultural Sensitivity ◽  
Graduate Program ◽  
Language Disorder ◽  
New York State ◽  
Deep Understanding

What does it mean to have true cultural competence as an speech-language pathologist (SLP)? In some areas of practice it may be enough to develop a perspective that values the expectations and identity of our clients and see them as partners in the therapeutic process. But when clinicians are asked to distinguish a language difference from a language disorder, cultural sensitivity is not enough. Rather, in these cases, cultural competence requires knowledge and skills in gathering data about a student's cultural and linguistic background and analyzing the student's language samples from that perspective. This article describes one American Speech-Language-Hearing Association (ASHA)-accredited graduate program in speech-language pathology and its approach to putting students on the path to becoming culturally competent SLPs, including challenges faced along the way. At Teachers College, Columbia University (TC) the program infuses knowledge of bilingualism and multiculturalism throughout the curriculum and offers bilingual students the opportunity to receive New York State certification as bilingual clinicians. Graduate students must demonstrate a deep understanding of the grammar of Standard American English and other varieties of English particularly those spoken in and around New York City. Two recent graduates of this graduate program contribute their perspectives on continuing to develop cultural competence while working with diverse students in New York City public schools.

Self-perceived oral health among three subgroups of Asian-Americans in New York City: a preliminary study

2001 ◽  
Vol 29 (2) ◽  
pp. 99-106 ◽  
Author(s):  
Gustavo D. Cruz ◽  
Diana L. Galvis ◽  
Mimi Kim ◽  
Racquel Z. Le-Geros ◽  
Su-Yan L. Barrow ◽  
...  
Keyword(s):  
New York ◽  
New York City ◽  
Oral Health ◽  
Asian Americans ◽  
York City ◽  
Preliminary Study
Sign in / Sign up

Export Citation Format

Share Document