## 4 Results and Discussion
### Comparison
#### 4.6.3 Comparison of Work Productivity Achieved on Various Construction Sites
An automated methodology for calculating the productivity of earthmoving operations in near real-time was presented by [PERSON], [PERSON] et al. The simulation was utilized by optimizing the production of an excavator with that of hauling units. The Bayes principle applied to the determination of the upper and lower performance limits was introduced by [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON], [PERSON] and [PERSON] [PERSON]. Using the Bayes theory, the predictions of the upper and lower performance limits were modified on the basis of the level of performances achieved in the past. The method proposed by [PERSON], [PERSON], [PERSON], [PERSON] provides reliable probabilities by presenting updated results based on continuously collected data rather than focusing on a one-time observation and associated analysis. The solution presented by [PERSON], [PERSON], [PERSON], [PERSON] integrates prior performance information with observations of new actual performance. The same principle is presented by [PERSON], [PERSON], i.e., having prior information does not have any practical effect on the forecast when progress on a significant portion of the project has been recorded. Simulation based on the Bayes principle was applied by [PERSON], [PERSON] et al. using real-time data. This predictability solution improves the classical simulation model. The study presented by [PERSON], [PERSON] and [PERSON], [PERSON] is similar to [PERSON]'s, [PERSON]'s simulation applications, i.e., it is based on continuously collected data. The use of simulation for productivity estimation based on multiple regression analysis was presented by [PERSON], [PERSON] The productivity estimation of interval estimates of performance ranges using regression analysis forms the so-called confidence band around the regression line. Apart from the verification of the duration of construction processes and their time relations for currently ongoing projects based on the recorded labor productivity values, the creation and updating of the performance dataset of individual construction processes represent a necessary condition for a precise time prediction of future constructions. Initially, an analysis of the monolithic structure was carried out. Based on the recorded performances and based on the subsequently conducted statistical analyses, the labor productivity of wall formworks adhering to the database amounting to 9.19 m\({}^{2}\)/shift/worker was met. This corresponds to the performances achieved at construction sites abroad as demonstrated by the publications of [PERSON] and [PERSON], where a labor productivity of 9.86 m\({}^{2}\)/shift/worker was recorded for the MIVAN system wall formwork. When plywood is used, the labor productivity amounts to only 2.62 m\({}^{2}\)/shift/worker. Labor productivity is also fundamentally affected by the formwork dimensions (2.44 \(\times\) 0.61). In this case, [PERSON] and [PERSON], and [PERSON] recorded a labor productivity of 5.2 m\({}^{2}\)/shift/worker. In accordance with the publications by Forsythe P.J., the application of the foundation slab reinforcement represents a value of 400 kg/shift, which corresponds to a performance that is 17% higher compared to the database [9]. When it comes to the application of a reinforcement of the ceiling panel, the labor productivity complying with the database amounts to 289 kg/shift, which represents a labor productivity that is 10% lower compared to the values stated in the publications by [PERSON]. When compared with the values adhering to the database, the recorded performances for the foundation slab and for the ceiling structure achieved at the construction site of the apartment complex at Klemestova Street are lower by 6%. When it comes to iron and steel works, a decisive role is played by the shape of the reinforcement structure, including the size of the reinforcement diameters adhering to the publications by [PERSON] The achieved labor productivity for implementing the ceiling formwork was 5.45 m\({}^{2}\)/shift/worker.