## 3 Results and Analysis
### Processes and Data Inputs in the Planning of Road Schedules
\begin{table}
\begin{tabular}{c c c c} \hline
**Id** & **Process** & **Input Files** & **References** \\ \hline \multirow{3}{*}{P\({}_{9}\)} & \multirow{3}{*}{Determine work in phases} & Project scope and terms of reference, owner’s requirements, drawings, design specifications and technical reports, characterization of the area & [47, 49, 50, 52, 55, 56] \\ \cline{3-3}  & & & Technical and economic feasibility, characterization of the area, control criteria, rules and regulations, landfill capacity and history, database historical & [38, 48, 51] \\ \hline \multirow{3}{*}{P\({}_{11}\)} & \multirow{3}{*}{Identify complementary works and similar works} & Drawings, design specifications, technical reports, database historical, control criteria, rules and regulations, project phases & [37, 47, 50, 53, 55, 57, 58] \\ \cline{3-3}  & & & Drawings, design specifications and technical reports, project scope and terms of reference, types of work, control criteria, rules and regulations, project phases & [39, 49, 50, 51, 52, 53, 55, 58, 59] \\ \hline \multirow{3}{*}{P\({}_{13}\)} & \multirow{3}{*}{Identify general and detailed activities} & Project scope and terms of reference, characterization of the area, WBS work packages, drawings, design specifications and technical reports, available resources, control criteria, rules and regulations & [37, 39, 48, 50, 51, 52, 53, 55, 58, 59] \\ \hline \multirow{3}{*}{P\({}_{14}\)} & \multirow{3}{*}{Define units of measure} & Types of work, WBS work packages, general and detailed activities & [39, 50, 51] \\ \hline \multirow{3}{*}{P\({}_{15}\)} & \multirow{3}{*}{Identify the internal circulation of the work} & Characterization of the area, types of work, work zones or phases, drawings, design specifications and technical reports, project phases, general and detailed activities & [47, 48, 51, 56] \\ \hline \multirow{3}{*}{P\({}_{16}\)} & \multirow{3}{*}{Identify advances or delays of successor activities} & Types of work, WBS work packages, general and detailed activities & [39, 50, 51, 58] \\ \hline \multirow{3}{*}{P\({}_{17}\)} & \multirow{3}{*}{Define construction methods} & Types of work, technology and equipment available, cost and time, training, drawings, design specifications and technical reports, project phases, control criteria, rules and regulations, database (KPI) & [50, 52, 53, 60] \\ \hline \multirow{3}{*}{P\({}_{18}\)} & \multirow{3}{*}{Identify dependencies and precedence of activities} & Types of work, drawings, design specifications and technical reports, types of dependence, project constraints, available resources, project phases, TPM & [39, 47, 51, 52, 53, 54, 58, 51, 53, 54, 55, 58] \\ \hline \multirow{3}{*}{P\({}_{19}\)}  
The process flow map in Figure 4 displays the planning of road intersection schedules. It consists of 29 processes identified through a systematic review. It is associated with five stages proposed based on the PMBOK's schedule management planning processes: (1) Road Schedule Management Planning, (2) Definition of Construction Activities, (3) Sequencing Construction Activities, (4) Estimating Duration of Construction Activities, and (5) Road Construction Schedule Development. The process classification in the stages was obtained from a panel of five experts in road construction scheduling. Each stage is represented by a distinct vertical color band, outlining the identified processes and relevant influencing variables. By aligning findings with PMBOK standards, the proposed process flow facilitates the adoption of best practices to enhance the planning and scheduling of road intersection construction projects. Figure 4 presents the methodological framework proposed for the scheduling of road construction projects, organized into six sequential stages. The flow begins with Stage I, where planning parameters, control criteria, scheduling models, and time units are defined, establishing the foundation for subsequent activities.