A three-dimensional network-based space–time prism

  title={A three-dimensional network-based space–time prism},
  author={Tijs Neutens and Nico Van de Weghe and Frank Witlox and Philippe De Maeyer},
  journal={Journal of Geographical Systems},
Time-geographic concepts are effective tools for the geovisualization of human activity patterns and to assess individual accessibility. In their traditional form, however, time-geographic concepts assume uniform travel velocities in an isotropic and homogeneous space. Because transportation systems confine travellers to links of road and rail networks with time-varying flows, these premises are typically unsatisfied in real-world situations. This paper provides an innovative approach to… 

Reliable Space–Time Prisms Under Travel Time Uncertainty

Time geography is a powerful framework for analyzing human activities under various space–time constraints. At the core of time geography is the concept of the space–time prism, which delimits an

Individual accessibility and travel possibilities: A literature review on time geography

In the late 1960s, Torsten Haegerstrand introduced the conceptual framework of time geography which can be deemed an elegant tool for analysing individual movement in space and time. About a decade

Analytical methods for error propagation in planar space–time prisms

This paper develops an analytical approach to assessing error propagation in space–time prisms and prism–prism intersections using an implicit function theorem that provides the required first-order partials without the explicit expressions.

Propagating and measuring anchor uncertainty in space-time prisms on road networks

The notion of sample points is extended to sample regions, which are bounded, sometimes disconnected, subsets of space-time wherein each point is a possible location, with its respective probability, where a moving object could have originated from or arrived in.

The Prism of Everyday Life: Towards a New Research Agenda for Time Geography

Abstract In light of the renewed attention for time geography in the transport modelling field in recent years, this paper provides a timely state‐of‐the‐art review of the contributions of the

Voxel-based probabilistic space-time prisms for analysing animal movements and habitat use

Time-geographic analysis has been limited in the past by its capacity to model only potential locations for moving objects, without sufficiently evaluating which locations are more probable. This

A Space-Time GIS for Visualizing and Analyzing Clusters in Large Tracking Datasets

  • Hongbo Yu
  • Computer Science, Environmental Science
  • 2017
The space-time GIS, together with the aggregation methods supported by the station concept, offers a useful exploratory analysis environment to support the investigation of hidden spatiotemporal patterns in large trajectory datasets of moving objects.

Efficient Geo-Computational Algorithms for Constructing Space-Time Prisms in Road Networks

The proposed NTP-A* algorithm employs the A* and branch-and-bound techniques to discard inaccessible links during two shortest path searches, and thereby improves the STP construction performance.



Modelling accessibility using space-time prism concepts within geographical information systems

  • H. Miller
  • Geography
    Int. J. Geogr. Inf. Sci.
  • 1991
In this paper, the derivation and manipulation of space-time prism concepts within a geographical information system (GIS) are discussed and a generic GIS based procedure is presented.


Hagerstrand's time geography is a powerful conceptual framework for understanding constraints on human activity participation in space and time. However, rigorous, analytical definitions of basic

Necessary Space—Time Conditions for Human Interaction

The author contributes by developing rigorous statements of the necessary space–time conditions for human interaction by extending a measurement theory for time geography that identifies necessary conditions both for physical and for virtual interaction.

Measuring Space‐Time Accessibility Benefits within Transportation Networks: Basic Theory and Computational Procedures

Space-time accessibility and benefit measures that are consistent with the rigorous Weibull axiomatic framework for accessibility measures are derived that reflect the locations, distances and travel velocities allowed by an urban transportation network.

Structuring a Wayfinder's Dynamic Space-Time Environment

With this structure, improved spatial information systems can be designed to support wayfinders in dynamic environments and allows for reasoning about space-time decision points and their impact on future possibilities.

Space-time accessibility measures: A geocomputational algorithm with a focus on the feasible opportunity set and possible activity duration

A new operational method and GIS-based algorithm is developed that better represents the space-time characteristics of urban opportunities and human activity-travel behavior and helps overcome several shortcomings of previous approaches to evaluating space- time accessibility.

Computational Tools for Measuring Space-Time Accessibility within Transportation Networks with Dynamic Flow

The space-time prism (STP) and STP-based accessibility measures are powerful techniques for assessing the ability of individuals to travel and participate in activities at different locations and

Space–time opportunities for multiple agents: a constraint‐based approach

This paper proposes a conceptual framework in order to determine interaction spaces for groups of individuals based on availability of means of transport and the locations of each individual, minimum activity duration and opening hours of opportunities.

Application of a CAD-based Accessibility Model

Geographical understanding of accessibility usually proceeds macroscopically, from the vantage point of a remote and detached observer, but this can obscure the way communication and transportation are incorporated in individual lives in real places, and hide much that is of interest from a cultural, social, or psychological viewpoint.

Gis methods in time‐geographic research: geocomputation and geovisualization of human activity patterns

Abstract Over the past 40 years or so, human activities and movements in space‐time have attracted considerable research interest in geography. One of the earliest analytical perspectives for the