Infrastructure crisis — a proposed national infrastructure policy for Canada

Mirza, Saeed; Ali, M. Shafqat

doi:10.1139/cjce-2016-0468

Cited by 17 publications

(4 citation statements)

References 4 publications

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“…The concept of getting the most benefits for the least amount of investment is not a novel idea within the domain of the road network projects. Researchers (Jingning, 2015;Mirza and Ali, 2017) have advocated the intermingling of LCCA-effective design and OM&R practices with those of value engineering to improve the decision-making paradigm. Further argument by Alqahtani and Whyte (2016) advocates for the calculation of indirect socio-economical, environmental and road-user indirect costs, such as: accessibility and comfort; accident and safety; time-delays; and, vehicle operational costs due to congestions, detours and work zone conditions.…”

Section: Stakeholder Expenses: Costs To Usersmentioning

confidence: 99%

Critical review and methodological issues in integrated life-cycle analysis on road networks

Hasan

Whyte

Jassmi

2019

Journal of Cleaner Production

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Life-cycle management of road network projects traditionally emphasise material production and construction stages, with less attention given to usage stage and functionality improvement. Increasingly there is a need to address: inconsistencies in cost attribute selection; adjusting for uncertainties and costs; clarifying system boundaries; data sources; functional units and regional or temporal applicability of life-cycle frameworks. The current study focuses on a critical literature review of life-cycle cost analysis (LCCA) and life-cycle assessment (LCA) research published in the last decade (post 2008) towards identification of research gaps. Accurately analysing all life-cycle stages, feedback loops, future cash and resource flows, and interlinking performance with overall sustainability can aid the decision-making process towards sustainable alternatives for constructing new, or rehabilitating existing roads. This review finds that the use of recycled materials, base/sub-base stabilisers and asphalt binder replacement has the potential of energy saving (≥ 34% or 3.1 TJ), mitigating landfill disposal issues, and greenhouse gas load reduction (≥ 34.5% CDE). Lack of real world LCCA-LCA application and stakeholder prejudice against recycled material usage are addressable by better stakeholder (decision-makers and road users) engagement via a social component. The proposed enhancements identified in this study can increase LCA/LCCA attraction to policy-makers, planners and users and ultimately ensure a more sustainable asset.

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Section: Stakeholder Expenses: Costs To Usersmentioning

confidence: 99%

Critical review and methodological issues in integrated life-cycle analysis on road networks

Hasan

Whyte

Jassmi

2019

Journal of Cleaner Production

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“…As of 2020, the total population in the Ottawa‐Gatineau and Montréal metropolitan areas is over 5.5 million (Statistics Canada, 2020b). Despite the economic and political importance of these areas, infrastructure in these cities is mostly old and is likely to be ill‐prepared for possible future strong ground shaking during an earthquake (Goda, 2019; Kovacs, 2010; Mirza & Ali, 2017). Mapping of active faults is therefore critical to estimating the seismic hazard in an area and, consequently, to formulating a reliable building code.…”

Section: Introductionmentioning

confidence: 99%

Reactivation Potential of Intraplate Faults in the Western Quebec Seismic Zone, Eastern Canada

Rimando

Peace

2021

Earth and Space Science

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The intraplate western Quebec seismic zone (WQSZ) in eastern Canada experiences moderate seismicity that mainly results from reactivation of inherited structures under the present-day, NE-SW-striking regional maximum horizontal stress (SH) and, possibly to a minor extent, through stress perturbations in response to glacio-isostatic adjustment. This work comprises the first numerical stress simulation-based study that predicts the preferred spatial distribution, trends, and sense of slip of contemporary fault reactivation, which may have implications for possible fault segmentation patterns in the WQSZ. We show that mostly NNW-SSE to NW-SE-striking faults exhibit the highest slip tendency values. Spatial patterns of slip tendency and kinematics of reactivation are consistent with the observed seismicity. In an area where Quaternary-active faults have yet to be systematically identified, we have narrowed down areas to focus on for more detailed, future neotectonic investigations that could provide sound foundation for seismic hazard assessments. This study demonstrates the applicability of slip tendency analysis to identifying potentially active faults in stable continental regions worldwide.

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“…Additionally, infrastructures in this area, like in most cities in eastern Canada are unlikely This is a non-peer reviewed preprint submitted to EarthArXiv. to be earthquake proof (Goda, 2019;Kovacs, 2010;Mirza & Ali, 2017). Improved knowledge of the level of seismic hazard in this area, from the earthquake magnitude estimates proposed in this study, could allow the following: 1) a better assessment of the suitability of the area for future urban development (e.g., Bathrellos et al, 2017); 2) proper implementation of seismic protection measures for timber structures (Ugalde et al, 2019) and historical structures and monuments (Syrmakezis, 2006); and 3) planning for mitigation of induced seismicity, potentially from industrial activity as the area develops.…”

Section: Discussionmentioning

confidence: 99%

Coseismic Coulomb Stress Changes on Intraplate Faults in the Western Quebec Seismic Zone, Canada: Implications for Seismic Hazards

Rimando¹,

Peace²,

Goda³

et al. 2023

Preprint

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There is currently no active fault map for the intraplate western Quebec seismic zone (WQSZ) in eastern Canada, and consequently, no detailed finite-fault source models which are critical for seismic hazard assessments in this region with a rapidly growing population. While previous numerical stress modelling studies have shown that mostly NNW-SSE to NW-SE-striking faults exhibit the highest potential for reactivation under the present-day tectonic stress field, such modelling is unable to take into account the interaction of faults and earthquakes. This study attempts to identify possible future rupture zones using Coulomb stress analysis. We explore the static stress transfer caused by select earthquakes (MW > 4.5) in the past century to proximal ‘receiver’ faults in the WQSZ, with a focus on those that exhibit a relatively high reactivation potential, to identify faults that have been promoted to failure. The significance of Coulomb stress changes (ΔCFS) observed on the nearby ‘receiver’ faults varied widely. Among the events analyzed in this study, only the 1935 MW 6.1 Témiscaming earthquake caused extensive positive Coulomb stress change (≥ 0.1 Bar) on its receiver fault. The modelled fault rupture extents suggest a range of earthquake magnitudes of MW 6-7. This work is the first attempt to provide a physical basis for seismic hazard assessment input parameters in the WQSZ based on the results of numerical stress modelling.

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Infrastructure crisis — a proposed national infrastructure policy for Canada

Cited by 17 publications

References 4 publications

Critical review and methodological issues in integrated life-cycle analysis on road networks

Critical review and methodological issues in integrated life-cycle analysis on road networks

Reactivation Potential of Intraplate Faults in the Western Quebec Seismic Zone, Eastern Canada

Coseismic Coulomb Stress Changes on Intraplate Faults in the Western Quebec Seismic Zone, Canada: Implications for Seismic Hazards

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