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The purpose of this paper is to examine policies and planning for sustainable city tourism in Amsterdam and Rotterdam and relate them to the notions of 'tourism reset' that emerged during the COVID pandemic period. Amsterdam is a prime European tourist city and has been suffering from problems associated with overtourism. Rotterdam receives much less tourists and can be seen as an emerging tourist city. Both cities have recently adopted new tourism policies, essentially future tourism visions. The case of Amsterdam and to a lesser extent that of Rotterdam show that formulating and agreeing on a tourism policy vision is easier than the decision-making process and implementing a vision. The instruments and powers of local government to manage the quantity and qualities of tourism are limited. Overtourism problems have stimulated carrying capacity thinking, which is considered inadequate for a multi-faceted problem like urban tourism. [ABSTRACT FROM AUTHOR]

The present study is aimed at the analysis of possibilities for shading southern frontage of street oriented along the E-W axis by the single row of trees, parallel to the southern elevations. The effectiveness of solar control shading was tested depending on the geometric relationships between trees and buildings. Numerical simulation analyses were conducted in Rhinoceros® program for the street located in humid continental climate in city Płock, Poland (52°32′50 "N 19°42'00 "E), for the day of the highest degree of total solar radiation in the year i.e. June 7th, during hours: 8.00a.m - 5.00 p.m. The analysis has proved that a row of 20–25 year old Sycamore Maple 'Rotterdam' in the street 30 m wide and 18 m high (H/W = 0.6), can provide solar protection for the southern frontage, especially when trees are located no more than 4 m away. Location of greenery within the range of 4 to 5 m from the buildings leads to a radical reduction in the possibility of shading the wall surfaces (at 5 m to 0%). Over 90% of the shading area of the ground floor façade walls was found when trees were within the distance 2 and 3 m away from the building. [ABSTRACT FROM AUTHOR]