Results 61 to 70 of about 209,547 (208)

The impact of urban spatial structure on travel demand in the United States [PDF]

open access: yes
The authors combine measures of urban form and public transit supply for 114 urbanized areas with the 1990 Nationwide Personal Transportation Survey to address two questions: (1) How do measures of urban form, including city shape, road density, the ...
Bento, Antonio M.   +3 more
core  

International Lessons for Promoting Transit Connections to High-Speed Rail Systems [PDF]

open access: yes, 2016
As the California High-Speed Rail (HSR) project becomes reality, many communities involved in, or affected by, the California HSR project have considered how to connect the new HSR passenger services to local urban transportation systems – such as bus ...
Feinsod, Stan   +3 more
core   +1 more source

Experimental study on burning rate and flame geometry in construction tunnel fires under high geothermal conditions

open access: yesDeep Underground Science and Engineering, EarlyView.
Abstract As tunnel construction advances in lengths and depths, the construction of tunnels in high geothermal environments has become increasingly common, raising significant fire risks. In this study, a 1:20 scale model tunnel test platform was constructed to investigate the effects of a high geothermal environment on fire behavior in tunnels during ...
Xiaoxian Fei   +6 more
wiley   +1 more source

Public transport subsidies and affordability in Mumbai, India [PDF]

open access: yes
This paper describes the role of public transport and the nature and incidence of transport subsidies in Mumbai, India. Mumbai has an extensive rail and bus network, and public transport is used for over 75 percent of all motorized trips in Greater ...
Bhattacharya, Soma, Cropper, Maureen
core  

Factors Determining Transit Access by Car Owners: Implications for Intermodal Passenger Transportation Planning [PDF]

open access: yes, 2013
Although walking is the dominant mode of transportation to transit facilities, there are strong variations by socio-demographics, geography, mode of public transit used and other factors.
Mallon, Y., Thakuriah, P., Tilahun, N.
core  

Intracavity weak nonlinear phase shifts with single photon driving

open access: yes, 2009
We investigate a doubly resonant optical cavity containing a Kerr nonlinear medium that couples two modes by a cross phase modulation. One of these modes is driven by a single photon pulsed field, and the other mode is driven by a coherent state. We find
Carmichael   +19 more
core   +1 more source

Motion planning and control of an installation robot for attitude adjustment of arc parts in underground shield tunneling

open access: yesDeep Underground Science and Engineering, EarlyView.
Inspired by spiders, the multilegged walk‐through assembling robot for arc parts achieves high‐precision synchronous control under heavy loads through dual‐layer hydraulic pose dynamics modeling and hierarchical pressure optimization, significantly enhancing shield tunneling assembly efficiency and precision.
Quan Xiao   +5 more
wiley   +1 more source

Public transport values of time [PDF]

open access: yes, 2001
OBJECTIVES The objectives of this aspect of the study are to provide recommended valuations of: • Public transport in-vehicle time (IVT) • Walk time • Wait time/headway with appropriate modifiers according to key factors such as: • Mode ...
Wardman, Mark
core  

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh   +12 more
wiley   +1 more source

Disaggregate Inter-Urban Mode Choice Models: A review of British Evidence with special Reference to Cross Elasticities. [PDF]

open access: yes, 1997
The research reported in this paper forms part of EPSRC project GRK52522 entitled 'National Multi-Modal Travel Forecasts'. The principal aim of this project is to develop a set of national and regional travel demand forecasts by land-based modes.
Wardman, M.
core  

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