Contract Value Research Articles

Multitouch Options

In this article, the multitouch option, also called the n-touch option (or the “baseball” option when n=3) is analyzed and valued in closed form. This is a kind of barrier option that has been traded for a long time on the markets, but that does not yet admit a known valuation formula. The multitouch option sets a gradual knock-out/knock-in mechanism based on the number of times the underlying asset has crossed a predefined barrier in various time intervals before expiry. The higher the number of predefined time intervals during which the barrier has been touched, the lower the value of a knock-out contract at expiry, and conversely for a knock-in one. Multitouch options can be viewed as an extension of step barrier options, preserving the ability of the latter to adjust the exposure to risk over time, while eliminating the notorious danger of “sudden death” that holders of step barrier options are faced with. They are thus less risky and more flexible than step barrier options, and all the more so when compared to standard barrier options. This article also provides closed-form valuation of multitouch options with nonstandard features such as an outside barrier or a barrier defined as a continuous function of time.

A Dynamic Procedure to Detect Maximum Voluntary Contractions in Low Back.

Surface electromyography (sEMG) is generally used to measure muscles' activity. The sEMG signal can be affected using several factors and vary among individuals and even measurement trials. Thus, to consistently evaluate data among individuals and trials, the maximum voluntary contraction (MVC) value is usually calculated and used to normalize sEMG signals. However, the sEMG amplitude collected from low back muscles can be frequently larger than that found when conventional MVC measurement procedures are used. To address this limitation, in this study, we proposed a new dynamic MVC measurement procedure for low back muscles. Inspired by weightlifting, we designed a detailed dynamic MVC procedure, and then collected data from 10 able-bodied participants and compared their performances using several conventional MVC procedures by normalizing the sEMG amplitude for the same test. The sEMG amplitude normalized by our dynamic MVC procedure showed a much lower value than those obtained using other procedures (Wilcoxon signed-rank test, with p < 0.05), indicating that the sEMG collected during dynamic MVC procedure had a larger amplitude than those of conventional MVC procedures. Therefore, our proposed dynamic MVC obtained sEMG amplitudes closer to its physiological maximum value and is thus more capable of normalizing the sEMG amplitude for low back muscles.

Surface electromyographic (sEMG) activity of the suprahyoid and sternocleidomastoid muscles in pitch and loudness control.

Purpose: This study set out to determine the contributions of the suprahyoid and sternocleidomastoid (SCM) muscles in changing pitch and loudness during phonation among vocally healthy populations. Method: Thirty-nine participants were first recruited, and twenty-nine of them who passed the screening test (Voice Handicap Index [VHI]-10 score ≤11, auditory-perceptual voice rating score ≤2) were finally selected (mean age = 28.2years). All participants were measured for their surface electromyographic (sEMG) activity collected from the bilateral suprahyoid and SCM muscles when producing the vowel /a/, /i/, and /u/ in natural (baseline) and at different pitch (+3, +6, -3, -6 semitones) and loudness (+5, +10, -5dB) levels. Linear mixed-effects models were performed to determine the influencing factors on the root-mean-square percentage of maximal voluntary contraction (RMS %MVC) value of the sEMG signals. Results: Compared with the baseline, a significant decrease of RMS %MVC was found in the suprahyoid muscles during overall phonations of lower pitches (-3 and -6 semitones) and loudness (-5dB). However, no significant change was detected when producing speech at higher pitch (+3 and +6 semitones) and loudness (+5 and +10dB) levels. Among the three vowels, /i/ demonstrated significantly higher RMS %MVC than those of /a/ and /u/. The SCM muscles, however, did not show any significant change in the RMS %MVC values among different vowels in relation to the pitch and loudness changes. When the muscles were compared across the two sides, significantly higher RMS %MVC was found in the right side of the suprahyoid (in pitch and loudness control) and SCM (in pitch control) when compared to the left side. Conclusions: The suprahyoid muscle activities were significantly decreased when producing lower pitches and intensities compared to the natural baselines. The production of sustained /i/ required significantly more suprahyoid muscle activities than those of /a/ and /u/. The SCM muscles did not show much sEMG activity in any of the pitch and loudness levels, which could be used potentially as the calibration or normalization of peri-laryngeal sEMG measurement. The findings also showed a tendency for bilateral asymmetry in the use of suprahyoid and SCM muscles.

ANALISIS EVALUASI RENCANA DAN PENGENDALIAN JUMLAH PENGGUNAAN ANGGARAN BIAYA PELAKSANAAN PROYEK PEMBANGUNAN GEDUNG KANTOR PELAYANAN MASYARAKAT DINAS BINA MARGA DAN CIPTA KARYA PROV. JATENG

The Construction Project for the Public Service Office Building for the Highways and Human Settlements Office of Central Java Province is carried out from February to October 2021, with total contract value of Rp. 8,313,888,968. This project using planning and controlling time and costs so that later work will be more efficient, according to plans and objectives. The purpose of this study is to determine the time performance of the Development Project, to find out the problems encountered in the implementation of the Project, as well as the solutions used to overcome the problems that arise. The method used in this study is the Earned Value Concept method in which it combines elements of schedule, cost, and work performance to calculate the estimated cost and time needed to complete the project to completion. The data obtained from the Project includes the Budget Plan (RAB), Project Work Schedule, Daily, Weekly, Monthly Reports and actual cost requirements. Furthermore, an analysis of costs, schedules, and work performance is carried out by explaining the problems that arise during the research. From the results of the research and analysis it is known that the total costs incurred are relatively the same as the budget that has been planned, this is indicated by the results of CV = 1 and the project implementation time has been delayed from the planned schedule, indicated by the results of SPI = 6.6883 The results of calculating an estimated cost of Rp. 8,313,888,968 with an estimated completion time of 36 weeks which indicates a delay of 1 week from the planned 35 weeks. Where this delay was caused by several factors such as weather conditions which were in the rainy season when the project was running, damage or inadequate tools.

Does Increased Femoral Anteversion Can Cause Hip Abductor Muscle Weakness?

Increased femoral anteversion (IFA) causes functional problems (i.e., tripping, frequently falling, and fatigue) by affecting the pelvis and lower extremity biomechanics. In the frontal plane, increased contralateral pelvic drop and ipsilateral hip adduction, which are mainly considered deteriorated hip abductor muscle mechanisms, are associated with hip and knee injuries. The aim of this study was to examine the effects of femoral anteversion on hip abductor weakness and frontal plane pelvis-hip biomechanics during walking. The study included nine subjects with increased femoral anteversion and a control group of eleven subjects. Maximum isometric voluntary contraction (MIVC) values of the hip abductor muscles were measured with a handheld dynamometer. Three-dimensional gait analysis was performed for kinetic, kinematic, and temporo-spatial gait parameters. Non-parametric tests were used for statistical analysis (p < 0.05). There was no significant difference found between the MIVC values of the IFA and control groups (p = 0.14). Moreover, no significant difference was determined between the ipsilateral peak hip adduction (p = 0.088) and contralateral pelvic drop (p = 0.149) in the stance phase. Additionally, there was no correlation between the peak hip adduction angle in the stance phase and normalized MIVC values in the IFA group (r = -0.198, p = 0.44), or in the control group (r = -0.174, p = 0.55). The deviations of pelvic rotation (p = 0.022), hip internal rotation (p = 0.003), and internal foot progression (p = 0.022), were found to be higher in the IFA group than in the controls. IFA may not be associated with hip abductor muscle weakness, and it may not lead to the hip adduction and pelvic depression that can be seen in hip abductor weakness. Increased pelvic rotation and internal hip rotation during walking might be considered as a compensation for the femoral head-acetabulum alignment mechanism in the frontal plane.

Postpartum stress urinary incontinence: a clinical study of 6,302 cases in Jiangsu Province.

To investigate the prevalence and influencing factors of stress urinary incontinence (SUI) within 6-8 weeks postpartum in Jiangsu Province. We designed a multi-center cross-sectional study involving seven hospitals in Jiangsu province, and enrolled women who underwent postpartum examination at 6-8 weeks in these hospitals between July 2019 and June 2021. According to the presence or absence of SUI, the enrolled patients were divided into two groups: the SUI group and the non-SUI group, respectively. We assessed the general health status, noted the details of delivery, and checked the pelvic floor electromyographic parameters of the postpartum women in both groups. Among 6,302 cases of postpartum women in Jiangsu province, there were 1,579 cases of SUI, with a prevalence of 25.06%. The prevalence of SUI increased significantly with age, BMI, increasing parity, coexisting constipation, organ prolapse, and diastasis recti abdominis. Compared to the non-SUI group, the SUI group had a lower mean value of the pre-baseline rest phase, shorter rise and fall times of fast muscle contractions, and a lower mean value of the endurance contraction phase. Multiple regression analysis revealed associations with weight (especially overweight and obesity), coexisting organ prolapse, constipation, parity, gestational week of delivery, mode of delivery, and mean value of endurance contraction phase. The prevalence of postpartum stress urinary incontinence in Jiangsu Province was 25.06%, and was linked to being overweight, parity > 2, coexisting organ prolapse, constipation, and a decrease in the mean value of the endurance contraction phase of the electromyograph. In this report, we offer a theoretical basis for the effective prevention of postpartum SUI clinically.

Risk Evaluation of Cost Overruns (COs) in Public Sector Construction Projects: A Fuzzy Synthetic Evaluation

In the Small Island Developing States (SIDS), public sector infrastructure projects (PSIPs) fail to both meet targeted performance metrics and deliver on the intended benefits to society. In terms of the cost performance metric, cost overruns (COs) beyond the initial contract value are more of a norm than a unique occurrence. Therefore, to ensure economic sustainability for SIDS, and value for money on PSIPs, there is a need to investigate and evaluate the risk impacts on COs. The purpose of this research was to identify and evaluate the perceived cost overrun risk factors that are within the primary project stakeholders’ sphere of control, and to reduce the ongoing ambiguities that exist in the prioritization of these risks. This was achieved by extracting critical risk factors from selected comparative studies in developing countries to formulate a closed-ended questionnaire to be administered to construction professionals in Trinidad and Tobago. Thereafter, the process of fuzzy synthetic evaluation (FSE) was used to develop a risk model based on three tiers of risks: 11 critical risk factors, 3 critical risk groupings (CRGs) and an overall risk level (ORL). The results showed that the two highest-ranked critical risks were project funding problems and variations by client. The leading critical risk grouping was client-related risk (5.370), followed by professional-related risk (4.815) and physical risk (4.870). The ORL was 5.068. Based on the FSE’s linguistic scaling, the CRGs and the ORL are perceived to be high risks in PSIPs. This research adds to the CO body of knowledge in primarily three ways. Firstly, the study extends the comparative assessment previously undertaken in scholarship into the context of SIDS to build on the generalizability of this context-specific phenomenon. Secondly, the FSE evaluation undertaken provides a practical tool to be promoted for use in SIDS’ construction industry among practitioners to focus and prioritize the critical risks in the planning phases and improve on contemporary risk practices in the execution phases of projects. Finally, this quantitative model approach is recommended to supplement the traditional qualitative risk management practices adopted in SIDS, thus contributing towards the overall improved economic sustainability and viability of PSIPs.

Research on risk management and control strategy of uranium resource procurement in China

ABSTRACT As the scale of nuclear power in China continues to expand, the problem of external dependence on uranium resources has become more and more prominent. The guarantee of uranium resources is facing great risks, especially the procurement risks. Therefore, the procurement risks of uranium resources based on the analytic hierarchy process and fuzzy comprehensive assessment method from multiple perspectives is analyzed in this paper. The results show that the risk values of target region selection, supplier selection and uranium mining are 73.6, 71.3 and 71.8 respectively, which are the main risks. The risk values of procurement contract and procurement cost are 69.3 and 67.5, which are relatively low. They can be regarded as the secondary risks. In addition, the countermeasures of uranium resource procurement risk are put forward from six aspects including risk mitigation, risk prevention, risk transfer, risk avoidance, risk retention and risk backup measures. It is helpful to guide the risk management of China’s uranium resources in procurement and transportation activities

Effects of local infiltration of peripheral blood mononuclear cells with phonophoresis on wound healing in dogs

A total of six dogs with extensive wounds of 5×5 cm2 size and above were taken with the objective of evaluating the efficacy of autologous peripheral blood mononuclear cells (PBMC) with phonophoresis on wound healing in dogs. Autologous PBMCs were isolated freshly on 0, 7, 14, 21 and 28th day from blood by using density gradient centrifugation. Obtained PBMC was infiltrated around the wounds. Phonophoresis was done using therapeutic ultrasound massage at 0.5 watts/cm2 for 10 min for all the six animals. Clinical evaluation and wound planimetry was performed during post treatment period. Most affected breed was mongrel and main aetiology was automobile accident. The wounds were mostly located on limbs, neck and abdominal region. PBMC was noticed to be compatible to the tissues. No signs of infection were noticed in the wounds after administration of PBMC, rather healthy granulation tissue-formation, increasing values of wound contraction, epithelization and healing were noticed. PBMC-phonophoresis in wound healing of canines in present study was found to be effective in extensive wounds.

Effects of posterior lumbar plexus block on anesthesia and sedation in postmenopausal patients with osteoporotic subtrochanteric comminuted fractures

ABSTRACT To study the effect of posterior lumbar plexus nerve block on anaesthesia and sedation in postmenopausal patients with osteoporotic subtrochanteric femoral comminuted fractures. The research subjects selected 48 patients with postmenopausal osteoporotic subtrochanteric comminuted fractures who were hospitalized between January 2020 and January 2022, and were allocated to clusters according to the random number TBL approach. The controlling cluster (24 situations) underwent dura mater Under external anesthesia, the test cluster (24 situations) underwent posterior lumbar plexus block, and the block effect, anesthesia effect, sedation effect, hemodynamics, vital signs and reactions of adverse nature were contrasted involving the two clusters. In comparison to the control group, the test group had a longer duration of anesthesia and motor block, higher oxygenation indices but lower ITBVI, GEDVI, and ScrO2 values, lower MAP levels, and lower BIS contraction values at 5, 15, and 30 minutes following anesthesia (P < 0.05). The test group had shorter induction time and block onset time compared to the control group (P < 0.05), and a lower incidence of adverse reactions (16.67% vs. 29.17% in the control group), but the variation was not noTBL (P < 0.05). Posterior lumbar plexus nerve block in postmenopausal patients with osteoporotic subtrochanteric femoral comminuted fractures has a better sedative effect, shortens the induction time of anaesthesia and the onset of block, promotes sTBL haemodynamic indexes and has fewer adverse effects to ensure safety.

Analysis of factors causing rework and their mitigation strategies in construction projects

Rework has turned into a problem in the building sector since it causes unwanted and pointless effort wastage. Both the design and construction phases of construction projects are affected, and it results in decreased project cost, quality, and schedule performance. Rework costs in large civil engineering projects might be anywhere between 5% and 20% of the contract value. It is crucial to effectively reduce rework as much as possible. Before rework can be managed properly, its underlying causes should found. So as to quantify rework in construction projects. The objective of this study was to find the contributory factors in the building sector, as well as how it affects project costs. The reasons for producing rework in construction projects and mitigation strategies to prevent rework in construction projects were identified based on research of the literature and expert opinion. Data from construction industry experts was gathered through a questionnaire survey. After statistical analysis of the data obtained from the questionnaire survey, structural equation modelling (SEM) was created. The findings of this study demonstrate that important reasons for rework were a lack of coordination and communication, errors and omissions, and changes brought about by parties. The results could improve the performance of the construction project by helping everyone understand why rework happens and how to cut it down as much as possible.

The impact of simultaneous shocks to financial markets and mortality on pension buy-out prices

AbstractIn this paper, we determine the fair value of a pension buyout contract under the assumption that changes in mortality can have an impact on financial markets. Our proposed model allows for shocks to occur simultaneously in mortality rates and financial markets, so that strong changes in mortality rates can affect interest rates and asset prices. This approach challenges the common but very strong assumption that mortality and market risk drivers are independent. A simulation-based pricing framework is applied to determine the buyout premium for a hypothetical fully funded pension scheme. The results of an extensive sensitivity analysis show how buyout prices are affected by changes in mortality and financial markets. Surprisingly, we find that the impact of shocks is similar whether or not these shocks occur simultaneously or not, although there are some differences in annuity prices and buyout premiums. We clearly see that the intensity and severity of shocks, and asset price volatility play a dominant role for buyout prices.

Commissioning groupwork for carers

ABSTRACT This small-scale qualitative study, involving commissioners of carers' services, contextualized in academic and other literature, adds to an understanding of groupwork for carers within the context of an English legal framework. Five commissioners, from different parts of England, participated in an online focus group. The dataset was analyzed thematically using a reflexive Thematic Analysis approach. Three themes were developed from the data. One theme indicated that differing understandings of the purpose of group activities for carers co-existed in each area and another that system-wide blocks meant that the choice of provider depends on factors like ability to risk-manage the contract value rather than skills needed to serve whole populations. This led to a third theme of commissioners attempting to “engineer” the development of successful groupwork. The findings suggest that Community Social Work is likely to be successful in working with carers but may face challenges within a quasi-market approach.

Does multiple-component intensive pelvic floor muscle training decrease muscle fatigue and symptoms in women with urinary incontinence?

A multiple-component intensive pelvic floor muscle training (MCI-PFMT) protocol was developed as a neurophysiological-based rehabilitation model to improve neuroplasticity. This study aimed to investigate the effects of the MCI-PFMT protocol on muscle fatigue and symptoms in women with urinary incontinence. This randomized controlled trial included 49 female patients with mixed urinary incontinence. Participants were divided into the MCI-PFMT group and the control group. The MCI-PFMT group performed supervised intensive pelvic floor muscle training, while the control group received bladder training and standard pelvic floor muscle training as a home program. Both training sessions were conducted 5 days a week for a single week. Participants' symptoms were evaluated with questionnaires, bladder diary, and pad tests. Superficial electromyography, ultrasonography, and the PERFECT scale were used to evaluate pelvic floor and abdominal muscle functions. In the post-treatment evaluation, symptoms were decreased in both groups, with a significant decrease in the MCI-PFMT group (p < 0.05). While average and peak work values of pelvic floor muscles, transversus abdominus, and internal oblique muscles increased in both groups, maximum voluntary contraction values of these muscles decreased (p < 0.05). A 12.7% decrease was observed in the maximum voluntary contraction values of pelvic floor muscles in the control group, while a 9.6% decrease was observed in the MCI-PFMT group. The MCI-PFMT protocol can lead to pelvic floor and abdominal muscle fatigue. However, it may be effective at decreasing symptoms in women with urinary incontinence. Additional studies on this issue are needed.

Busines legal regulation of the contractual use of intellectual property objects

The article examines the peculiarities of legal regulation of contractual relations on the use of intellectual property objects in the field of business. It has been proven that the importance of the civil law regulation of these relations in the norms of the Economic Code of Ukraine is slightly underestimated. The legal regulation of relations on the contractual use of intellectual property objects by economic norms and norms of civil legislation complex. The issue of concluding a contract is ensured by the norms of economic legislation, and the legal status of the creator (or other person who owns property rights to intellectual property) and the legal regime of the object of intellectual property is regulated by the norms of civil legislation.&#x0D; Differences in the provisions of economic legislation and the norms of special laws regarding the form of contracts on the transfer of rights to use an intellectual property object were revealed. In special legislation, the written form is defined as a condition for the validity of the contract; the consequences of violation of this condition are defined in the norms of the Civil Code of Ukraine - non-compliance with the written form leads to the invalidity of these contracts.&#x0D; A number of factors affecting the content of business contracts on granting the right to use intellectual property objects have been determined. These factors are enshrined in the norms of economic and civil legislation, in particular in special laws that determine the legal regime of individual objects of intellectual property. The value of exemplary and standard contracts for the legal regulation of the use of intellectual property objects on the basis of the contract has been revealed.&#x0D; Based on the analysis of the requirements of economic and civil legislation, a list of essential conditions of the economic agreement on the transfer of intellectual property objects for use has been determined. It has been proven that the essential conditions of such an agreement are the conditions on the subject, on the terms, on the methods of using the object of intellectual property, on the territory to which the right to use the object of intellectual property is extended, as well as any conditions in respect of which the requirements at least. one of the parties to the contract must reach an agreement.

ILLICIT BUSINESS FORUMS IN SOUTH AFRICA: A SURVEY

Extortion is understood as one party taking from another a patrimonial or non-patrimonial advantage by intentionally and unlawfully subjecting them to pressure which forces them to submit to a bribe. Extortion is not an unfamiliar concept in South Africa. In this article it is contended that extortion has become a major concern in the construction industry. Sites where the installation of critical infrastructure occur and construction sites throughout South Africa are being invaded by what some may call the ‘construction mafia’.1 The South African Forum of Civil Engineering Contractors reports that in 2019 alone over 180 infrastructure and construction projects were affected by acts such as extortion perpetrated by groups who call themselves ‘local business forums’. The business forums often mislead construction companies by demanding 30% of the value of the contract awarded to such companies. They refer to the stipulations in the Preferential Procurement Policy Framework Act 5 of 2000 (PPPFA) and subsequent Preferential Procurement Regulation, 2017 (PPR) to create the perception that they have a rightful claim to 30 percent of the contract value. If their demands are not met the business forums resort to violence which halts construction site activities. The business forums justify their actions as ‘radical transformation’. This view is supported by some local politicians who actively encourage the activities by the forums or are involved for financial or political gain.

Discretion and Favoritism in Public Procurement

Abstract This paper investigates the consequences of bureaucratic discretion in public procurement. I exploit a Hungarian policy reform, which allows a “high-discretion” procedure below a certain contract value. At the threshold, I document large discontinuities both in procurement outcomes and in the density of contract values, which indicates that buyers manipulate contract values to avoid auctions. I combine the reform and a structural model to find that discretion increases prices and results in the selection of less productive contractors. I also show that high discretion benefits firms with connections to the party of the central government. I use the structural model to document that public buyers are willing to sacrifice more contract value to increase their discretion if more connected firms are operating in the market. I also use the model to simulate the effects of counterfactual procurement thresholds on different procurement outcomes.

Does Psychological Contract Violation Change the Original Intention of Eco-Tourists to Participate in Scenic Value Co-Creation?

Eco-tourists are the practitioners of promoting the harmonious development of humans and nature, and have a very important significance for the scenic spots and sustainable development of scenic areas. However, external factors often interfere with the eco-tourists’ original intention, which not only affect the tourist experience, but also bring a negative influence to the scenic spots, and even the destinations where they are located. Identifying the triggering factors and processes that influence eco-tourists’ participation in scenic value co-creation will lay a solid foundation for the effective governance of scenic areas. This paper systematically explores whether, how and when psychological contract violations significantly affect the eco-tourists’ participation in scenic value co-creation from the perspective of psychological contract violations. The data are collected from 556 eco-tourists’ questionnaires from the Yellow River Estuary Ecotourism Zone of Dongying City, Shandong Province, China. Through a hierarchical regression analysis and further validated by the Bootstrap method, the study finds the following: First, eco-tourists’ psychological contract violation has a significant negative effect on their participation in value co-creation. Second, moral disengagement plays a mediating role in the relationship between psychological contract violation and value co-creation behavior. Third, moral disengagement acts on value co-creation. The process of moral disengagement on value co-creation behavior is influenced by the level of expertise. The negative effect of moral disengagement on value co-creation decreases as the level of expertise increases. The findings of this paper not only expand the antecedents of tourists’ participation and the path of psychological contract violation in value co-creation, but also have important practical implications for promoting eco-tourists’ participation in value co-creation as well as reducing, preventing and identifying psychological contract violation in ecotourism scenic spots.

Critical Coordination Factors Affecting Design and Build Projects

The design and build projects (DB) have increased in numbers in the last few decades. DB method is becoming more popular than the traditional method in Malaysia, especially in national projects.However, design-build projects may suffer from a significant number of problems, such as conflicts between the project parties (designers, contractors, and owners), resulting in poor performance and poor quality. One common cause of project failure of conventional projects is poor coordination and communication process. It has been found that no such study has been found to identify the coordination factors that might affect the project’s success. To fill this gap, this research aims to establish a framework of coordination factors affecting DB projects’ performance in Malaysia. This study uses a mixed methodology approach to identify critical coordination factors by a comprehensive review of the literature. The identified factors were categorized, ranked, and prioritized according to their influence on project performance using a quantitative approach. It is found that scheduling and planning, human resource coordination, documentation &amp; records coordination, contract implementation coordination, value engineering and quality assurance, technical coordination, design coordination, management coordination, and external coordination are the significant factors of coordination that may affect the performance of construction projects. This study provides empirical evidence by correlating the identified coordination factors with DB project performance. Identification of coordination factors will help in enhancing and improving the performance of design and build projects.

Safety Implementation Analysis and Occupational Health at Kretek 2 Bridge Work In Bantul Regency

Construction work includes the implementation of construction work and the community organizing the construction work itself. The implementation of this construction work must comply with the provisions regarding engineering, occupational safety and health, labor protection, and local environmental regulations to ensure the realization of an orderly implementation of construction work. The construction of the Kretek 2 Bridge in Bantul Regency, Special Region of Yogyakarta Province has its own challenges, because the location of the bridge is in an area prone to earthquakes and liquefaction or ground movement. With so many workers on this very high-risk project, there is a high probability of an accident occurring. The purpose of the study was to analyze (1) the risky work that could occur in bridge construction work, (2) the work that has the highest possible risk, (3) risk control, (4) the amount of investment costs required. The method used is the HIRADC method. The results of the study were (1) Risky work that can occur was a. High level of risk, including drowning, being dragged by the river current, being hit by heavy equipment maneuvers and falling from a height. b. Moderate risk level, including being crushed by formwork, falling material, scratched hands. c. Low level of risk, including landslides, heavy equipment maneuvers, iron puncture. (2) Work that has the highest possible risk is Pile Cap Excavation Work, Work Floor Work and Pier Head Ironing Work. (3) Risk control in bridge work consists of: Using a boat when measuring in rivers, Conducting briefings before starting activities, Using PPE life vests and placing life ring buoys on boats, Installing signs and placing officers in areas that intersect with roads, Installing guardrail of the project area, installing scaffolding as a working platform and inspecting its feasibility, communicating hazards through signs, conducting refresh training for workers. (4) The investment cost required for implementing K3 on the Kretek 2 Bridge work in Bantul Regency was Rp. 6,545,998,310 or 1.795% of the contract value.