# Sustainability in the Design of an Itinerant Cultural Exhibition. Study of Two Alternatives
## 3 Case Study
### Alternative 2: Audovisual Exhibition  
In this alternative, the exhibition of cultural content is based on the use of audiovisual media. Contents are projected onto the four walls by ten projectors (plus one spare), and audio tracks are emitted by eight speakers. This equipment is conveniently distributed and installed by two workers on the technical ceiling (floor plan and showroom perspective; Figure 3). In addition, a computer to control audiovisual material is required. The device's raw materials and manufacturing data, transport from the warehouse to the exhibition hall (37 km), transport between destinations (3539 km), and installation activities in the showroom are examined in the creation stage. Activities of public attention, coordination/on-call technicians, and cleaning are developed by five workers in the provision stage. Moreover, exhibition development is accomplished by the correct operation of equipment (on and standby modes are differentiated according to the working mode). Specific lighting is not necessary for this type of exhibition. The safety lighting in the showroom is sufficient and not considered. The data are summarised in Figure 3.  
When each exhibition finishes after 3 months, the equipment is disassembled, uninstalled, and moved to the next destination in one rented van, with a 3 m\({}^{3}\) capacity, by the installers. At the final destination, in addition to the dismantling activity after the exhibition closed, all the materials were discarded (26.81 kg), moved to waste management plants (6.6 km away), and categorised according to the nature of the material (metal, plastic, glass, or mixed waste). The sustainability indicators obtained in each life cycle stage of the audiovisual exhibition are listed in Table 4, expressed per entire exhibition tour and per month and m\({}^{2}\). If the total life cycle is evaluated, less than 47 tons of CO\({}_{2}\)-eq are emitted, the total execution costs reach EUR 333,000, and accumulated working times by the workers involved in the development of the service are approximately 23,000 h. Indicators expressed per functional unit are, respectively, 4.33 kg CO\({}_{2}\)-eq, EUR 30.85, and 2.15 h. Thus, lower impacts than in the printed exhibition are valued. Notably, indicators calculated in the provision stage are significantly higher than those obtained in the creation and dismantling stages: 89%, 80.1%, and 89.3% of the total impact, respectively. \begin{table}
\begin{tabular}{l c c c c c c} \hline \hline  & \multicolumn{2}{c}{**Environmental Dimension**} & \multicolumn{2}{c}{**Economic Dimension**} & \multicolumn{2}{c}{**Social Dimension**} \\  & \multicolumn{2}{c}{**GWP\({}_{100}\)**} & \multicolumn{2}{c}{**C\({}_{\text{E}}\)**} & \multicolumn{2}{c}{**Tw**} \\ \hline \multirow{2}{*}{**Life Cycle Stage**} & **Kg CO\({}_{2}\)-eq/** & **Kg CO\({}_{2}\)-eq/** & **EUR/** & **EUR/** & **h/** & **h/** \\  & **Entire Tour** & **Month-m\({}^{2}\)** & **Entire Tour** & **Month-m\({}^{2}\)** & **Entire Tour** & **Month-m\({}^{2}\)** \\ \hline Creation & 1168.09 & 0.11 & 36,496.64 & 3.38 & 610.69 & 0.06 \\ Provision & 45,579.01 & 4.22 & 286,842.09 & 26.56 & 22,176.00 & 2.05 \\ End-of-life & 2.24 & 0.0002 & 9810.87 & 0.91 & 391.75 & 0.04 \\ Total & 46,749.33 & 4.33 & 333,149.60 & 30.85 & 23,178.44 & 2.15 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Alternative 1: audiovisual service. Sustainability indicators.