A visual perception effect assessment of some large and broad-leaved trees under different lighting arrangements

Abstract

This experimental study concentrates on how different lighting arrangements affect visual perceptions of plant lighting. Five different lighting arrangements of three tree species were prepared; the differences between the participants' perceptions of each lighting arrangement were analysed and the effects of the different lighting arrangements were determined. Consequently, these applied lighting techniques were observed to be effective in creating visual perceptions of plants. In this particular study of plant-lighting alternatives, the objective was to determine which techniques created the most positive effects.

Light formed through urban morphology and different organism groups: First findings from a systematic review.

“…Existing knowledge related to urban lighting design considers various factors and impacts, e.g., perceived light qualities from a human perspective [56] and physiological and behavioural alterations on species [15]. Few studies concentrate on the interaction between spatial characteristics and lighting [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38]; others focus exclusively on either human vision [39][40][41][42][43][44][45][46][47][48][49][50]62], perception [51][52][53][54]58] or environmental impacts [12-15, 59, 61, 64]. Thus, the overall knowledge on the contribution of spatial characteristics in transforming the light effects in urban contexts, impacting pedestrians and ecology, appears fragmented and not holistically integrated.…”

“…The reviewed studies employed both quantitative and qualitative methods for evaluating lighting and data were collected in forms of hand-held light measurement instruments [17, 18, 21, 22, 26, 28-30, 34, 36, 51-54], computer-aided simulations [17-20, 23, 24, 26, 34, 35, 38, 62], virtual reality (VR) [55,46,57], eye-tracking devices [40,57], wearable electroencephalograms (EEGs) [55], participatory simulation interfaces [32], scale models [27], questionnaires [11,18,19,25,29,31,[51][52][53][54][55][56], interviews [17,25,58], observations [19,21,22,[25][26][27]30], photographs [25,26,29,31,36,43,53,54,65], and sketching [25,26]. Some of the theories used in the studies were inspired by Gordon Cullen [26], Jan Gehl [1,…”

“…The texture of trees, dense or light, determines the visual quality of the surroundings and should be taken into account when planning illumination. Dense-textured trees can effectively be illuminated by fixtures from a distance due to their low light transmittance [31]. Dense and tall vegetation cover at pedestrian height can contribute to an improved perception of the light distribution [26,30], and broad-leaved trees can act as reflectors and diffusers, leading to the impression of a "largescale outdoor living room" [30].…”