New York Talk Exchange: Revealing Urban Dynamics through the Global Telecommunications Network

2014 ◽  
pp. 65-80
Keyword(s):  
New York ◽  
Urban Dynamics ◽  
Telecommunications Network ◽  
Talk Exchange

scholarly journals Inferring Long-Term Demand of Newly Established Stations for Expansion Areas in Bike Sharing System

2021 ◽  
Vol 11 (15) ◽  
pp. 6748
Author(s):  
Hsun-Ping Hsieh ◽  
Fandel Lin ◽  
Jiawei Jiang ◽  
Tzu-Ying Kuo ◽  
Yu-En Chang
Keyword(s):  
New York ◽  
Feature Extraction ◽  
Real World ◽  
Extraction Methods ◽  
Real World Data ◽  
Urban Dynamics ◽  
Bike Sharing ◽  
The Government ◽  
Short Time

Research on flourishing public bike-sharing systems has been widely discussed in recent years. In these studies, many existing works focus on accurately predicting individual stations in a short time. This work, therefore, aims to predict long-term bike rental/drop-off demands at given bike station locations in the expansion areas. The real-world bike stations are mainly built-in batches for expansion areas. To address the problem, we propose LDA (Long-Term Demand Advisor), a framework to estimate the long-term characteristics of newly established stations. In LDA, several engineering strategies are proposed to extract discriminative and representative features for long-term demands. Moreover, for original and newly established stations, we propose several feature extraction methods and an algorithm to model the correlations between urban dynamics and long-term demands. Our work is the first to address the long-term demand of new stations, providing the government with a tool to pre-evaluate the bike flow of new stations before deployment; this can avoid wasting resources such as personnel expense or budget. We evaluate real-world data from New York City’s bike-sharing system, and show that our LDA framework outperforms baseline approaches.

International Civil Aviation Organization

1952 ◽  
Vol 6 (1) ◽  
pp. 115-119
Keyword(s):  
New York ◽  
Technical Assistance ◽  
The United States ◽  
Secretary General ◽  
Civil Aviation ◽  
Standing Committee ◽  
Assistance Program ◽  
Telecommunications Network ◽  
Technical Assistance Program ◽  
Further Development

The Council held a post-assembly session June 21 to 29, 1951 in which air navigation problems figured most prominently. The Council established universal radio telephony procedures recommended by the Airworthiness and the Communications Divisions during their fourth sessions and incorporated them into Amendment 4 to Annex 10 (Aeronautical Telecommunications) of Standards and Recommended Practices for implementation November 1, 1951. The Air Navigation Commission was authorized to establish a small standing committee, proposed by the Airworthiness and Operations Divisions, to make tentative amendment to Annexes 6 and 8 (Operation of Aircraft, Airworthiness of Aircraft). The Council also approved the implementation January 1, 1952 of the Revised Supplementary Regional Procedures in Meteorology. On the advice of the Air Navigation Commission, the Council approved the proposal by the United States and France to include the New York-Paris circuit in the Aeronautical Fixed Telecommunications Network of the European and the Mediterranean Region, subject to review by the European and Mediterranean Regional Air Navigation Meeting in February. Amendments 23 to 28 to Annex 4 (Aeronautical Charts) were adopted; and unless disapproved by a majority of contracting states they would become effective November 1, 1951 and implemented January 1, 1952. The Council endorsed the establishment of regional training centers and directed the Secretary-General to encourage such development and particularly to urge the governments of India, Pakistan, and Egypt to consider further development of centers of Allahabad, Nawabshar or Karachi, and Cairo, not only for the benefit of their own nations, but also for that of neighboring states. Noting the development of prohibited, restricted, and danger areas along international air routes, the Council asked all contracting states to issue communications prior to boundary changes. Mohammed El Hakeem (Egypt) and A. C. Carter (United Kingdom) were appointed to the Air Navigation Commission. In conclusion, the third report of the Organization's technical assistance program was approved with its estimated $900,000 budget for 1952 for transferral to the United Nations. The retirement of the Secretary-General, Albert Roper, was deferred until December 31, 1951.

scholarly journals Potential and pitfalls of big transport data for spatial interaction models of urban mobility

2020 ◽  
Author(s):  
Taylor M. Oshan
Keyword(s):  
New York ◽  
Temporal Dynamics ◽  
Spatial Interaction ◽  
Movement Behavior ◽  
Parameter Estimates ◽  
High Temporal Resolution ◽  
Shared Resources ◽  
Modeling Framework ◽  
Urban Dynamics ◽  
Spatial Interaction Models

Massive amounts of data that characterize how people meet their economic needs, interact within social communities, and utilize shared resources are being produced by cities. Harnessing these ever-increasing data streams is crucial for understanding urban dynamics. Within the context of transportation modeling it still remains largely unknown whether or not these new data sources provide the opportunity to better understand spatial processes. Therefore, in this paper, the usefulness of a recently available big transport dataset - the New York City (NYC) taxi trip data - is evaluated within a spatial interaction modeling framework. This is done by first comparing parameter estimates from a model using the taxi data to parameter estimates from a model using a traditional commuting dataset. In addition, the high temporal resolution of the taxi data provide an exciting means to explore potential dynamics in movement behavior. It is demonstrated how parameter estimates can be obtained for temporal subsets of data and compared over time to investigate mobility dynamics. The results of this work indicate that a pitfall of big transport data is that it is less useful for modeling distinct phenomena; however, there is a strong potential for modeling high frequency temporal dynamics of diverse urban activities.

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