@higgicd

Assistant Professor, GIScience+Urban Planning @UTSC_HumanGeo @geo_uoft

higgicd.github.io
Joined June 2010
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233Media
The Tricky Relationship Between Transit and Land Value citylab.com/commute/2016/04/…
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Chris Higgins retweeted
Nutifafa!@ArkuNutifafa25 Oct 2024
📚 New Publication Alert📚 Check out our latest on transport equity by @higgicd , Jaimy Fischer, @FarberSteven and I as we explore the question: Do affluent neighbourhoods pay more for transit access? The response? Well ….
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Question for @paleolimbot - on windows, should R computations like mutate on an arrow dataset be multithreaded? arrow::cpu_count is 36 but only ever seems to use 1. Sorry, can’t seem to find info in docs.
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As a fan of multiprocessing, swapping out R’s math libraries for optimized versions really cuts down on the run time for large spatial models! higgicd.github.io/posts/acce…

Accelerating R – Christopher D. Higgins

higgicd.github.io
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📚 New publication! "Are low-income residents disproportionately moving away from transit?" Grateful to be a part of this terrific collaboration using @CRDCN micro data to examine fine-grained trends in transit accessibility across income levels.
Chris Higgins@higgicd26 Jun 2023
Are low-income residents disproportionately moving away from transit? New paper by @JeffAllenMaps with @FarberSteven, Dan Silver, and I uses a panel dataset of tax filers (1988 to 2018) in Toronto and finds “Yes, but…”
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Are low-income residents disproportionately moving away from transit? New paper by @JeffAllenMaps with @FarberSteven, Dan Silver, and I uses a panel dataset of tax filers (1988 to 2018) in Toronto and finds “Yes, but…”
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Moreover, households are, in general, making fewer moves over time (in line with trends in many countries around the world):
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Fifty days free access link here! authors.elsevier.com/a/1hI44…
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While COVID-19 public transport cuts may have been an inconvenience for some, they were potentially life-threatening for individuals with opioid use disorder...🧵 (1/8) Proud to share this new work with Dr. Kumar Gupta, @higgicd, and Dr. Matthew Palm sciencedirect.com/science/ar…
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Join us for the next session of The Way Forward on May 16, 4-5PM! 'Moving and #housing multitudes in the #Toronto region' features Prof Nathanial Baum-Snow, Derek Goring, Prof @TaraVinodrai and moderator Prof @higgicd | Virtual | Free | Details & register➡️uoft.me/9dG
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We're hiring again! Come join our incredible team as a postdoctoral fellow on the @UofTMobilityNet iCity2.0 and @MobilizingJust projects! utoronto-my.sharepoint.com/:…
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Building on @RaktimMitra @TMUTransForm ’s research into the upcoming TTC service changes, here’s a quick look at differences in transit access to jobs after the new schedules enter service next week. @wklumpen @FarberSteven and I digging deeper into results by neighbourhood
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Didn’t get to finish the thought earlier - travel times calculated over every minute each hour using #r5r and access based on the median travel time, so service levels are reflected. Opportunities weighted by this bottom gravity function calibrated to TTC trip durations!
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Here’s a cumulative one too - difference in sum of jobs reachable within 45 minutes rather than the “gravity”-based version
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Looking forward to it! @grantdmckenzie @platialanalysis
Department of Geography and Planning@geo_uoft10 Mar 2023
Join us on Friday, March 17 (SSH 2125) from 3:00 - 5:00pm for an Intersections Speaker Series "Urban mobility in the sharing economy: A spatiotemporal comparison of micromobility services" with Grant Mackenzie (McGill University)! Learn more: uoft.me/8Y-
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We are hiring! 📢 Postdoc opportunity working at the Suburban Mobilities Cluster at @UTSC led by @FarberSteven. A wonderful space to work with mobility researchers across the @UofT ecosystem, particularly @UofTMobilityNet. Please RT! 📃Details here: shorturl.at/FGIY5
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Gravity-based #accessibility measures... still interested in the differences between types of "unconstrained" vs. competitive measures? Potential uses for #equity planning? Check out our (@paezha, @higgicd, @Moataz_MMohamed) recently published paper! 🕸️: doi.org/10.1371/journal.pone…

Introducing spatial availability, a singly-constrained measure of competitive accessibility

Accessibility indicators are widely used in transportation, urban and healthcare planning, among many other applications. These measures are weighted sums of reachable opportunities from a given...

journals.plos.org
Anastasia Soukhov@soukhov_a26 Aug 2022
New accessibility measure! 📢 This preprint is for those intrigued in evaluating access to competitive opportunities. It introduces ⭐Spatial Availability⭐, a singly constrained accessibility measure with some interesting discussion. (1/7)
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Closing soon - the Department of Human Geography at the University of Toronto Scarborough is hiring an Assistant Professor of Urban and Regional Policy jobs.utoronto.ca/job/Toronto…
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