Hazard Reduction Research Articles

Night Shift Duty of Nurses and its Effects on Family and Social Lives

Background: The problem with a night shift working at that, the human race is diurnal, who are functions during day time. Night workers report a number of health problems. Therefore these negative effects have consequences not just for individual, but also for work place, as decreased alertness and reduced job performance that could endanger human lives and affect the quality of life. The assumption is that ergonomically designed shift schedules will assist in the reduction of physiological and psychosocial hazards in the workplace. Objective: This study was aimed to find out the factors influencing night shift of nurses working in Shahid Ziaur Rahman Medical College Hospital, Bogra Methods: A descriptive study was used in this study. Data was collected using semi-structured questionnaire and the data was analyzed using SPSS. Results: Here, 16% of the respondents felt discomfort during night shift. 66% they don’t get enough sleep after night duty. 60% of the respondents mentioned that night shift sometimes affects their attitude negatively. 70% stated that night shift sometimes affects their mood. 70% also stated that night shift sometimes disturbs their social life. 80% mentioned that night shift sometimes increases interpersonal conflict in their family. Conclusion: The findings revealed that the participated nurses were not comfortable with night shift at all. Night workers accumulate a sleep deficit and sleepy workers make mistakes. The most dangerous are those who build up a “sleep debt” depriving themselves of sleep over long periods.

Review on Lightweight Mobile Flood Wall Barrier: Way Forward for Malaysia

Flooding is a persisting challenge in Malaysia. Combating flood risk has become a main priority for sustainable development in this country. The application of sophisticated engineering in hard structure approaches and flood control systems are often incongruous to the public. Therefore, there is a need to integrate the soft engineering approaches and the best practises of flood management to mitigate flood risk. There is also a need to integrate the concept of sustainable development into its planning policies towards flood hazard reduction. Mobile flood protection measures are useful as an alternative solution in flood protection and mitigation purposes. Mobile protective systems can be used for temporarily increasing the height of permanent flood protection structures during extreme events and can be utilised as emergency measure against flooding in unprotected low-lying areas. As the available mobile systems differ in the type of material, method of installation and available protection height, a description of their features, and potential application were examined including their respective opportunities and drawbacks. This article presents a review on different types of lightweight mobile flood wall barrier (MFWB) that were implemented to cope with floods in Malaysia with examples of application in other countries such as United Kingdom, Slovakia, and Netherlands. The MFWB products are reviewed and compared to each other according to the types, characteristics, mechanisms, drawbacks and how these measures are integrated into spatial planning. Based on the findings, several suggestions are given on how to improve the flood risk management in flood-prone areas and way forward for Malaysia.

High-volume facilities are significantly more likely to use guideline-adherent systemic immunotherapy for metastatic Merkel cell carcinoma: implications for cancer care regionalization.

Merkel cell carcinoma (MCC) is a neuroendocrine skin cancer with a high rate of mortality. While still relatively rare, the incidence of MCC has been rapidly rising in the US and around the world. Since 2017, two immunotherapeutic drugs, avelumab and pembrolizumab, have been FDA-approved for the treatment of metastatic MCC and have revolutionized outcomes for MCC. However, real-world outcomes can differ from clinical trial data, and the adoption of novel therapeutics can be gradual. We aimed to characterize the treatment practices and outcomes of patients with metastatic MCC across the US. A retrospective cohort study of adult cases of MCC in the National Cancer Database diagnosed from 2004 to 2019 was performed. Multivariable logistic regressions to determine the association of a variety of patient, tumor, and system factors with likelihood of receipt of systemic therapies were performed. Univariate Kaplan-Meier and multivariable Cox survival regressions were performed. We identified 1017 cases of metastatic MCC. From 2017 to 2019, 54.2% of patients received immunotherapy. This increased from 45.1% in 2017 to 63.0% in 2019. High-volume centers were significantly more likely to use immunotherapy (odds ratio 3.235, p = 0.002). On univariate analysis, patients receiving systemic immunotherapy had significantly improved overall survival (p < 0.001). One-, 3-, and 5-year survival was 47.2% (standard error [SE] 1.8%), 21.8% (SE 1.5%), and 16.5% (SE 1.4%), respectively, for patients who did not receive immunotherapy versus 62.7% (SE 3.5%), 34.4% (SE 3.9%), and 23.6% (SE 4.4%), respectively, for those who did (Fig. 1). In our multivariable survival regression, receipt of immunotherapy was associated with an approximately 35% reduction in hazard of death (hazard ratio 0.665, p < 0.001; 95% CI 0.548-0.808). Our results demonstrate that the real-world survival advantage of immunotherapy for metastatic MCC is similar to clinical trial data. However, many patients with metastatic disease did not receive this guideline-recommended therapy in our most recent study year, and use of immunotherapy is higher at high-volume centers. This suggests that regionalization of care to high-volume centers or dissemination of their practices, may ultimately improve patient survival.

Windblown sand hazards risk assessment along the highways based on GIS-game theory combination weight.

Windblown sand hazards seriously threaten the safe operation of highways in desert areas. Reasonable risk assessment can provide the basis for windblown sand hazards prevention and risk reduction. To facilitate the formulation of better windblown sand hazards prevention and reduction strategies, a new windblown sand hazards risk assessment model along the highways was proposed, in which seven evaluation indicators were selected from danger of the hazard-causing factors, vulnerability of the hazard-forming environment, and the vulnerability of the hazard-bearing body. The model was established based on the combination weighting method of game theory, and the risk map was generated based on the GIS platform. Finally, the model was applied to the windblown sand hazards risk assessment along the Wuhai-Maqin Highway. The result showed that the risk of the windblown sand hazards along the Wuhai-Maqin Highway is mainly medium, low, and very low. High and very high risk windblown sand hazards sections account for only 33% of the total length of the highway. The high and very high risk highway sections of the windblown sand hazards are mainly distributed in the hinterland of shifting dunes area and near the horizontal curve with a small radius in the flat sandy land area. By comparing with the real information of windblown sand hazards along the highway, correlation was up to 85.93%, which verified the accuracy of the model. The model can be applied to windblown sand hazards risk assessment along the highways.

An equivalent point-source stochastic model of the NGA-East ground-motion models

The main objective of this study is to estimate seismological parameters in Central and Eastern North America (CENA), including the geometrical spreading, anelastic attenuation, stress parameter, and site attenuation parameters. In this study, we use particle swarm optimization (PSO) to invert a weighted average of the median 5%-damped pseudo-spectral acceleration (PSA) predicted from the Next Generation Attenuation-East (NGA-East) ground-motion models (GMMs) to develop a point-source stochastic GMM with a well-constrained set of ground-motion parameters. Magnitude-specific inversions are performed for moment magnitude ranges M = 4.0–8.0, rupture distances Rrup = 1–1000 km, and periods T = 0.01–10 s, and National Earthquake Hazard Reduction Program site class A conditions. The result of this study yields a single stochastic GMM that yields PSA values similar to the median NGA-East GMMs. The parameters derived from this study can be used for the hybrid empirical method (HEM) applications. This study is the first to perform a formal inversion using the GMMs developed for the NGA-East project. The approach has been validated using simulated small-to-moderate magnitude and large-magnitude data derived from the NGA-West2 GMMs.

Forest-based solutions for reconciling natural hazard reduction with biodiversity benefits

Nature-based solutions (NbS) offer ways to preserve, restore and manage ecosystems to meet today's societal challenges by combining benefits for society and biodiversity. They incorporate natural features and processes into projects to ensure their sustainable development while investing in the integrity of ecosystems. “Forest-based solutions” (FbS) can be identified as NbS forests that provide both human well-being and biodiversity benefits. In this paper, we intend to consider FbS as solutions that help reconcile natural hazard control with biodiversity benefits, and especially highlight the practices and research needs in this field. FbS in this article correspond specifically to forests used or managed for mitigating natural hazards linked to gravity (rockfalls and avalanches) or to water (floods and drought), while preserving, restoring or managing biodiversity. Firstly, we review the definition and development of FbS applied to natural hazard reduction, while stressing issues concerning the design, implementation, and monitoring of these kinds of actions. Secondly, we point out the need to combine natural hazard control with restoration, preservation and management of ecosystems, by posing novel practice and research questions.

Understanding falls and its prevention among adults with visual impairment through behavior change models.

This study used behavior change models to understand the perspectives of falls among patients with visual impairment who are at greater risk of falls. Resulting themes on barriers and facilitators led to the identification of a "SMART" intervention strategy that remains to be tested as a fall-reducing behavior. This study explored the perspectives of adults with visual impairment on falls and proposed falls prevention strategies using behavior change models. Participants 18 years or older who were diagnosed with low vision or blindness from a tertiary eye hospital in India and had a history of falls in the previous year were recruited. "Reduction of falls" was defined as a behavior, and interview questions were designed to explore awareness, context, and consequences of falls to determine barriers and facilitators that could help reduce falls. The interviews were audio-recorded, transcribed, translated into English, and analyzed using thematic analysis. The results were linked to the Theoretical Domains Framework and the Behavior Change Wheel, under different levels of a The Socio-Ecological Model. Intervention functions from the Behavior Change Wheel were identified using the APEASE criteria (affordability, practicability, effectiveness/cost-effectiveness, acceptability, safety/side effects, and equity) to finalize behavior change techniques. Themes on barriers and facilitators at individual, family, and societal levels were identified from 36 semistructured telephone interviews. Key barriers were fear of falling, social stigma and lack of training in using assistive devices, not considering falls as a major concern, environmental hazards, and loss of support from caregivers. Key facilitators were consciously monitoring falls, undergoing orientation and mobility training, getting assistance for outdoor mobility, and self-confidence. This study proposed a five-step "SMART" intervention strategy for prevention of falls to be prospectively tested. SMART include Support from caregivers and use of assistive devices, Monitoring of falls, Awareness about falls, Reduction of hazards, and Training for safe mobility.

Smut fungus (Langdonia walkerae) incidence is lower in two bunchgrass species (Aristida stricta and A. beyrichiana) after fires early in the year.

In frequently burned southeastern USA pine-grassland communities, wiregrass (Aristida stricta and A. beyrichiana) are dominant bunchgrasses whose flowers are infected during flowering by a smut fungus (Langdonia walkerae). We hypothesized that because prescribed fire timing affects wiregrass flowering patterns, it could affect smut incidence (occurrence of smut on plants) and severity of infection in inflorescences and spikelets. Because soil order could influence plant susceptibility, we hypothesized that these patterns would differ between soil orders. We hypothesized differences between species as representative of geographic variation in this ecosystem. We surveyed the incidence and severity of L. walkerae in wiregrass populations (85 populations at 14 sites) that had been prescription burned at different times during the previous year. We used binomial regressions to test whether incidence and severity differed by burn day, soil order, or species, with site as a random effect. Fires that occurred in the winter were associated with significantly lower incidence than fires later in the year (as the months progressed into summer). Plants growing on Spodosol soils were significantly less likely to be infected than those on other soils. More variation in incidence, however, was explained by site, suggesting that site-specific characteristics were important. Smut severity in inflorescences and spikelets was greater overall in populations of A. stricta than in southern populations (A. beyrichiana). Our findings indicate that fire timing and soil order affect L. walkerae incidence in wiregrass plants, but neither appears to be associated with greater severity. Patterns of smut infection are related to site history and geographic variation.

Remote Sensing Measurements at a Rural Site in China: Implications for Satellite NO2 and HCHO Measurement Uncertainty and Emissions From Fires

AbstractNitrogen dioxide (NO2) and formaldehyde (HCHO) play vital roles in atmospheric photochemical processes. Their tropospheric vertical column density (TVCD) distributions have been monitored by satellite instruments. Evaluation of these observations is essential for applying these observations to study photochemistry. Assessing satellite products using observations at rural sites, where local emissions are minimal, is particularly useful due in part to the spatial homogeneity of trace gases. In this study, we evaluate OMI and TROPOMI NO2 and HCHO TVCDs using multi‐axis differential optical absorption spectroscopy (MAX‐DOAS) measurements at a rural site in the east coast of the Shandong province, China in spring 2018 during the Ozone Photochemistry and Export from China Experiment (OPECE) measurement campaign. On days not affected by local burning, we found generally good agreement of NO2 data after using consistent a priori profiles in satellite and MAX‐DOAS retrievals and accounting for low biases in scattering weights in one of the OMI products. In comparison, satellite HCHO products exhibited weaker correlations with MAX‐DOAS data, in contrast to satellite NO2 products. However, TROPOMI HCHO products showed significantly better agreement with MAX‐DOAS measurements compared to OMI data. Furthermore, case studies of the vertical profiles measured by MAX‐DOAS on burning days revealed large enhancements of nitrous acid (HONO), NO2, and HCHO in the upper boundary layer, accompanied with considerable variability, particularly in HONO enhancements.

Age-period-cohort analysis of incidence, mortality and disability-adjusted life years of esophageal cancer in global, regional and national regions from 1990 to 2019

ObjectiveIn view of the high incidence and mortality of esophageal cancer, the latest statistical data on the disease burden of esophageal cancer can provide strategies for cancer screening, early detection and treatment, and help to rationally allocate health resources. This study provides an analysis of the global disease burden and risk factors of esophageal cancer from 1990 to 2019.MethodsUsing the 2019 Global Burden of Disease, Injury and Risk Factor (GBD) data, we present the incidence, mortality and disability-adjusted life years (DALY) of esophageal cancer in 21 regions and 204 countries and different sociodemographic index (SDI) regions from 1990 to 2019. The age-period-cohort model was used to estimate the age, period, and cohort trend of esophageal cancer in different SDI regions. The estimated proportion of DALY attributable to each risk factor from 1990 to 2019.ResultsFrom 1990 to 2019, the number of new cases of esophageal cancer, the number of deaths and DALY increased by 67.07%, 55.97% and 42.13%, respectively, but age standardized incidence rate (ASIR), age standardized mortality rate (ASMR) and age standardized DALY rate (ASDR) decreased by 19.28%, 25.32% and 88.22%, respectively. Overall, the results of the age-period-cohort model showed that the incidence, mortality, and DALY rates in countries and regions with higher SDI levels showed a downward trend over time and with the passage of time. Conversely, there were no significant changes in incidence and mortality in countries and regions with low SDI levels. In the past 30 years, the incidence and death of esophageal cancer in the world has gradually changed to people over 80 years old, but the population aged 60–79 still accounts for the largest proportion. The global DALY in esophageal cancer is mainly attributable to smoking, followed by alcohol consumption and occupational exposure.ConclusionsAlthough ASIR, ASMR and ASDR have decreased significantly, esophageal cancer is still the main factor causing the disease burden worldwide. Public health administrators in low SDI and low-middle SDI countries are high-risk areas for esophageal cancer, and preventive control measures should be implemented to raise awareness, screening, and treatment of esophageal cancer in these areas. Tobacco and alcohol control and reduction of occupational hazards are key steps in reducing the burden of esophageal cancer.

Influence of buffer distance on environmental geological hazard susceptibility assessment.

Previous researches seldom studied the selection of buffer distance between geological hazards (positive samples) and non-geological hazards (negative samples), and its reasonable selection plays a very important role in improving the accuracy of susceptibility zoning, protecting the environment and reducing the cost of hazard management. Based on GIS technology and random forest (RF) and frequency-ratio random forest (FR-RF) models, this study innovatively explored the influence of randomly selected non-geological hazard samples outside different buffer distances on the susceptibility evaluation results, with buffer distances of 100 m, 500 m, 1000 m and 2000 m in sequence. The results show that through the confusion matrix and ROC curve test, the accuracy of the model increases first and then decreases with the increase of buffer distance. Both RF and FR-RF models have the highest accuracy when the buffer distance is 1000 m, and the accuracy of the RF model is generally higher than that of the FR-RF model under the same buffer distance. Similar attribute values of positive samples and randomly selected negative samples or "extreme" attribute values of negative samples are the main reasons for the differences in evaluation results of different buffer distances. According to the weight analysis of causative factors, the distance from road, the distance from river and the normalized vegetation index (NDVI) are the main factors affecting the occurrence of hazards. The high and very high susceptibility areas in the study area are mainly distributed on both sides of roads and water systems, which are the key areas for hazard prevention and reduction. The HMC of RF-1000m decreased by 3.55% on average compared with other models. The results of this study improve the accuracy of geological hazard susceptibility assessment, maintain the safety of ecological environment, and provide a scientific basis for the selection of buffer distance index in local and surrounding areas in the future.

Impacts of wildfire on soil characteristics in subtropical Chir Pine forests of Murree, Pakistan

Wildfires are a natural component of forest ecosystem. These fires are a major cause of significant perturbations in the forest habitat due to temperature extremes and drought conditions particularly in summer. Wildfires occur frequently during summer in the subtropical Chir pine forests of Murree, Pakistan. These fires influence soil characteristics as well as tree-species growth and survival. The present study was thus conducted to investigate soil characteristics of wildfire-affected and non-affected areas. Four sites were selected based on wildfire incidents in the study area. Soil samples were collected from the fire-affected and adjacent non-affected areas. The collected soil samples were analyzed for physical and chemical characteristics using appropriate methods. The study showed that bulk density, moisture content, electrical conductivity, and soil nitrogen and soil carbon content declined in the burnt soil. However, soil pH, and phosphorus and potassium contents were higher in the burnt soils than those in the non-burnt soils. Generally, low intensity forest fire (surface fire) is an important component of forest ecosystem and it enhances natural regeneration as well as soil fertility. It is suggested that government forest departments should take into account burn severity while developing hazard reduction and restoration strategies of wildfire affected areas.

“Let Them Stay There”: COVID-19 and Zimbabwe’s Indignation Against Return Migrants and Travelers

This paper explains the indignation against and stigmatization of return migrants and travelers when Zimbabwe first recorded cases of COVID-19 in 2020. While xenophobic hatred toward foreign migrants enjoyed much media and scholarly attention, the similar risk faced by the return migrants and travelers among “their own” during the pandemic was largely left on the back burner. The paper uses secondary analysis of information from social media, government reports, media briefings, and public utterances of government officials to provide an explanation for the negative attitudes of locals against migrants at the height of COVID-19. The findings revealed that in times of change and dealing with uncertainty, there is a tendency to redraw boundary lines between in-groups and out-groups with negative consequences for those labeled as the out-group. For some time, the returnees were stigmatized as harbingers of the COVID-19 virus and viewed as troublesome and acting in an unreasonable manner, thus courting the indignation of local Zimbabweans. This paper lends support to the view that pandemics create fear, which results in the rejection and exclusion of ordinary members of the in-group. Perceived resource competition, resource scarcity, anxiety, and fear heightened the stigmatization of return migrants and travelers. To build back better from the negative effects of the pandemic, there is a need to review COVID-19 preventive measures, avoid reckless public pronouncements that stigmatize and stoke hatred for return migrants, and invest in the healthcare system.

Study of cost indicators of the functioning of the public procurement system in Ukraine

The cost indicators of the functioning of the public procurement system in Ukraine were studied. It is emphasized that in modern conditions, the public procurement system is one of the important means of socio-economic transformations in the country, contributes to the formation of a competitive market for sustainable and innovative development. It was emphasized that openness and transparency at all stages of procurement is one of their key principles, the main factor in combating corruption, abuse and waste of public funds. It is noted that the issue of transparency and openness of public procurement in wartime has been put on the back burner, the expected cost of procurement in 2022 was lower than in previous periods. The war significantly complicated the conduct of procurement, which significantly affected the publication of information about procurement The tendency to reduce the expected cost of purchases is also because due to the full-scale military invasion of Russia and active hostilities, the number of customers has also significantly decreased.. During 2022, there will be a significant reduction in procurement procedures by their main types. Access to information on all defense purchases was closed on Prozorro. In 2020, a new type of procurement appeared in order to combat the coronavirus – procurement without the use of the electronic Covid-19 system. During 2019–2022, the popularity of the procurement procedure using the electronic catalog grew. In 2021, customers began to use this type of procurement as a request for a quote. The expected value of competitive procurement during 2018–2021 is increasing, but in 2022 this indicator is 61.59% less than in 2021. The dynamics of the expected value of non-competitive purchases during the studied period have an upward trend. The efficiency of public procurement in 2021 and 2022 is almost 6%. Savings in purchases that were completed amounted to more than UAH 47.3 billion in 2020, about UAH 60 billion in 2021, and almost UAH 20 billion in 2022. Today, Prozorro does not have complete information on wartime purchases. That is why the issue of establishing the integration of the Prozorro and DKSU systems for data exchange becomes expedient and relevant.

Spine Surgeon Health and Well-being

Abstract As spine surgeons continue to strive for high-quality patient care in an ever-changing health care environment, their individual health can often be put on the back burner. Under the stress of caring for and operating on the spine patient, surgeons must juggle additional hardships in the form of occupational exposures such as intraoperative radiation, degenerative conditions secondary to ergonomics and the inherent physical tax of spine surgery, and an increasing incidence of mental health disorders. In this review, we discuss the current body of literature as it relates to physical, mental, and occupational tolls placed on surgeons.

Bio-inspired robots for confined space industrial applications: a novel cable-driven snake robot design

Industrial automation has played a pivotal role towards improvement of productivity, efficiency, working conditions, ergonomics and reduction of health hazards. While a large portion of industrial sectors and processes have or can be automated, certain domains serve as unexplored ground due to the complexity of the processes to be executed, size and material properties of the parts of interest and available space, which highlight the need for new automation technology. In this paper, a systematic classification of product complexity and common industrial processes versus the use of conventional and bio-inspired robots is presented, aiming to identify the benefits of bio-inspired robots over their conventional competitors. Moreover, a novel cable-driven snake robot design is presented, featuring a modular lightweight structure of several segments, each of them controlled by a 3-cable mechanism, providing them 2 degrees of freedom. It exhibits significant potential to demonstrate high levels of versatility in navigating inside intricate, confined environments and narrow passages, such as aircraft fuel tanks, enabling automation of unhealthy processes that traditionally require human intervention.

Comparison of Low-Voltage Arc-Resistant Equipment, Equipment with Isolation Barriers, and Equipment with Energy-Reducing Line-Side Isolation for Reduction of Arc-flash Hazards

Comparison of Low-Voltage Arc-Resistant Equipment, Equipment with Isolation Barriers, and Equipment with Energy-Reducing Line-Side Isolation for Reduction of Arc-flash Hazards

Sustainable fodder production: Southern phragmites in herbivorous fish feeds

The aim of the work is to develop directions of ecologically sound management of the southern Phragmites (reed) biomass on the basis of its use as the main component of feed for herbivorous fish. The methods used were monographic, logical analysis, scientific abstraction, comparative analysis, chemical analysis and field experience. The novelty of the research lies in the development of formulations and technology of feed production for herbivorous fish bred in ponds and closed water supply systems on the basis of natural physiologically characteristic food and non-traditional raw material in feed production - southern reed. As a result, the formulation and technology of four types of feed for herbivorous fish on the basis of southern reed was developed; the mechanism of design solution for removal of rapidly renewable biomass of southern reed from water bodies by using it in feed production, instead of using it as waste; to test the production of fodder on the basis of southern reed in the fodder factory at the price of 25-30 rub/kg; to prove the effectiveness of fodder on the basis of southern reed in the feeding of herbivorous fish; to develop practical recommendations for the production of fodder on the basis of southern reed. The practical significance is that the use of southern reed in the production of fodder will provide a complex socio-economic effect consisting in the creation of a new market for raw materials for the production of fodder, the cleaning of agricultural land and water bodies from uncontrolled overgrowth, the reduction of the fire hazard, the increase in the production of commercial fish available to the population due to the transition from extensive to intensive methods of cultivation, the development of fodder production.

High performance polydimethylsiloxane elastomer for triboelectric nanogenerators in extreme environment

Safety is a great challenge in the fields of electronics, especially in the harsh environments. Triboelectric nanogenerators would provide an efficient way to harvest mechanical energy from environment and convert them into electrical energy. However, most conventional polymeric materials for TENGs are easily flammable in the fire condition and would intenerate under high temperature. All these properties greatly affect the application of TENG. Herein, a novel polydimethylsiloxane elastomer with conjugated benzene ring is proposed to fabricate the heat- and fire-resistant TENG for the first time. The existence of conjugated benzene ring guarantees the polydimethylsiloxane elastomer with excellent mechanical properties, outstanding anti-dripping, superior thermal stability and fire-resistance. The resultant TENG exhibits excellent electrical performance which is originated from the existence of Si-benzene group and high dielectric constant (3.9). And it could maintain 100 % and 80 % output voltage in the high temperature (300 °C) and high tensile strain (200 %). What’s more, the output voltage of the obtained TENG remains almost unchanged after 60 s combustion. Consequently, this work will offer a novel strategy for tailoring the TENGs toward a secure power generator and electronics with fire hazard reduction, and potential application in firefighting and extreme temperature environments.

Linking Deployment Outcomes to Program Impacts for Mobile Photo Enforcement

Previous research has delved into the effectiveness of Mobile Photo Enforcement (MPE) in curbing speed violations and enhancing road safety. This present study extends this investigation to explore the potential influence of MPE deployment efforts on subsequent collision occurrences. Specifically, the research team applied survival analysis techniques to examine the connection between MPE deployment variables and the duration between collisions. K-M survival estimates were employed to assess the survivability of classified groups, categorized based on deployment hours, visits, the ratio of hours to visits, and traffic count. The findings illuminated that the ratio of hours to visits emerged as the most impactful variable in prolonging the time interval between collisions and diminishing the likelihood of collisions. Notably, the anticipated reduction in collision hazards, signifying the occurrence of collisions, exhibited variations ranging from 22% to 52%. The most substantial decreases were observed when deployment occurred in high-traffic locations. These outcomes reinforce the positive impact of deployed MPE hours and visits in extending the duration between consecutive collisions, thus reducing the risk of collision occurrences.