# Photovoltaic Roundabouts for Enhancement of Self-Sufficiency and Resiliency
## 3 Results and Discussion
\begin{table}
\begin{tabular}{c c c c} \hline \hline
**Type of Roundabout** & \begin{tabular}{c} **Inscribed Circle** \\ **Diameter [m]** \\ \end{tabular} & \
\begin{tabular}{c} **Power Obtainable from** \\ **Monocrystalline Silicon** \\ **Modules [kW]** \\ \end{tabular} &
\begin{tabular}{c} **Power Obtainable from** \\ **Polycrystalline Silicon** \\ **Modules [kW]** \\ \end{tabular} \\ \hline Mini roundabout & 20 & 0.92 & 0.71 \\ \hline Mini roundabout/ & 25 & 3.55 & 2.73 \\ \hline Compact roundabout & 30 & 15.18 & 11.69 \\ \hline Compact roundabout & 35 & 35.67 & 27.46 \\ \hline Compact roundabout/ & 40 & 62.73 & 48.31 \\ \hline Conventional roundabout & 45 & 111.08 & 85.53 \\ \hline Conventional roundabout & 50 & 147.29 & 113.41 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Power supplied by the photovoltaic modules. \begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Type of Roundabout** & \begin{tabular}{c} **Inscribed Circle** \\ **Diameter [m]** \\ \end{tabular} & \
\begin{tabular}{c} **Productivity, E\({}_{\text{PV}}\) [kWh/Year]** \\ **Monocrystalline Silicon Modules** \\ \end{tabular} &
\begin{tabular}{c} **Productivity, E\({}_{\text{PV}}\) [kWh/Year]** \\ **Polycrystalline Silicon Modules** \\ \end{tabular} \\ \hline Mini roundabout & 20 & 1009.80 & 1193.40 & 1377.00 & 777.54 & 918.92 & 1060.29 \\ \hline Mini roundabout/ & 25 & 3905.67 & 4615.80 & 5325.92 & 3007.37 & 3554.16 & 4100.96 \\ \hline Compact roundabout/ & 40 & 69,007.33 & 81,554.11 & 94,100.90 & 53,135.64 & 62,796.67 & 72,457.69 \\ \hline Conventional roundabout & 50 & 162,016.42 & 191,473.95 & 220,931.48 & 124,752.64 & 147,434.94 & 170,117.24 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Electricity productivity of the RAPS (E\({}_{\text{PV}}\)). \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & & \multicolumn{5}{c}{**Minimum Energy Consumption Requirement for Lighting System, E\({}_{\text{train}}\) [kWh/Year]**} \\ \cline{3-8}
**Type of** & **Inscribed Circle** & **Roundabout Only** & **Roundabout Only** & **Roundabout** & **Roundabout (High & **Roundabout (Toles)** & **Roundabout (Toles)** \\
**Roundabout** & **Diameter [m]** & **Roundabout Only (Toles)** & **Roundabout** & **Mast Polole and Legs** & **Mast Polole and Legs** & **and Legs** \\
**Roundabout** & **(High Mast Poles)** & **Only (Toles)** & **(Single-Sided)** & **(Double-Sided)** & **(Single-Sided)** & **(Double-Sided)** \\ \hline Mini roundabout & 20 & 2040 & 3040 & 16,872 & 15,224 & 17,782 & 16,224 \\ \hline Mini roundabout/ & 25 & 2960 & 5456 & 17,792 & 16,144 & 20,288 & 18,640 \\ \hline Compact roundabout/ & 40 & 8660 & 16,320 & 23,492 & 21,884 & 31,152 & 29,504 \\ \hline Conventional roundabout & 50 & 11,400 & 67,808 & 26,232 & 24,584 & 82,640 & 80,992 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: Minimum energy consumption requirements for lighting systems in roundabouts. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & & \multicolumn{5}{c}{**Maximum Energy Consumption Requirement for Lighting System, E\({}_{\text{train}}\) [kWh/Year]**} \\ \cline{3-8}
**Type of** & **Inscribed Circle** & **Roundabout Only** & **Roundabout** & **Mast Polole and Legs** & **Mast Polole and Legs** & **Mast Polole and Legs** & **and Legs** \\
**Roundabout** & **Diameter [m]** & **Roundabout Only (Toles)** & **Only (Toles)** & **(Single-Sided)** & **(Double-Sided)** & **(Single-Sided)** & **(Double-Sided)** \\ \hline Mini roundabout & 20 & 33,968 & 17,600 & 119,728 & 186,384 & 103,360 & 170,016 \\ \hline Mini roundabout/ & 25 & 33,968 & 17,600 & 119,728 & 186,384 & 103,360 & 170,016 \\ \hline Compact roundabout/ & 40 & 42,460 & 33,968 & 128,220 & 194,876 & 119,728 & 186,384 \\ \hline Conventional roundabout & 50 & 42,460 & 67,936 & 128,220 & 194,876 & 153,696 & 220,352 \\ \hline \hline \end{tabular}
\end{table} 
Table 7: Maximum energy consumption requirements for lighting systems in roundabouts.