Urban road traffic noise pollution has always been identified as a severe problem that affects urban populants.In developing nation,road traffic noise pollution depends on the composition of heterogeneous traffic comp...Urban road traffic noise pollution has always been identified as a severe problem that affects urban populants.In developing nation,road traffic noise pollution depends on the composition of heterogeneous traffic composition.These traffic compositions contain vehicles,which have different sizes,speeds variations,a different dimension of vehicles.Environmental noise measurements have been carried out during day-time and night-time in different locations of tier-II city of India.The noise levels have been continuously measured over 24 h periods using kimo DB 300 class-2 noise level meter.The data contained in this research paper represent 768 measurement hours.All the information has been used to investigate the time patterns of the noise levels under a wide range of different conditions and to study the relationships between noise levels and traffic in urban areas.Maximum LAeq was observed 73.3 dB(A)at B_(14) location and the minimum was recorded 65.7 dB(A)at C_(3) location,which was greater than the central pollution control board(CPCB)prescribed limits during night time.A major reason for the generation of road traffic noise is due to the equal composition of 2-wheeler and 4-wheeler on the arterial road and heavy vehicles were recorded during morning peak and evening peak even though they are prohibited during peak hours.展开更多
The present paper is talking about the recent situation of the archeological buildings which exist through modern urban environments. Urban expansion has a large effect on the archeological buildings continuity since ...The present paper is talking about the recent situation of the archeological buildings which exist through modern urban environments. Urban expansion has a large effect on the archeological buildings continuity since such type of development impresses several serious challenges which conservation plans as well as preservation polices must deal with. A number of that main challenges are mega-constructions （tunnels, damps, roads, etc.）, pollution, socio-cultural impacts and traffic. Within Um Qias, the archeological buildings face similar challenges consistent with the urban environment where it is presented and that challenges are reviewed in the local community behavior.展开更多
Contents of urban road landscapes were introduced from 3 perspectives of natural landscape elements,constructed landscape elements and historic landscape elements,and functions of urban road landscapes analyzed.Sidewa...Contents of urban road landscapes were introduced from 3 perspectives of natural landscape elements,constructed landscape elements and historic landscape elements,and functions of urban road landscapes analyzed.Sidewalk of the West Renmin Road in Changsha City of Hunan Province was taken for example to elaborate design principles of urban sidewalk landscapes.It was proposed that urban cultures and local spirits have various connotations,such as historic traditions,environment background and neighboring objects,which are maintained in the memories of local residents in the form of historic relics,traditions,spirits,concepts and folk customs.These cultures and spirits are passed down from generation to generation and can be found in all corners of streets and lanes,but cannot be simply replaced by sculptures or garden settings.The fever of large-scale artificial sculpture in present construction of urban public spaces in China was criticized.展开更多
This study examines the daylight and energy performance of 27 external shading scenarios in a high-rise residential building in the urban tropics.The cooling energy,daytime lighting energy and the spatial daylight aut...This study examines the daylight and energy performance of 27 external shading scenarios in a high-rise residential building in the urban tropics.The cooling energy,daytime lighting energy and the spatial daylight autonomy(sDA)of the building model were simulated in Rhino3D and Grasshopper simulation software.The best per-formance scenario(vertical and horizontal shading on the twentieth floor,horizontal shading only for the eleventh floor and no shading for the second floor)satisfied 75 sDA(300lx|50)with corresponding annual enery performance of 16%-20%in the cardinal directions.The baseline scenario,which is the current practice of providing balconies on all floors,reduced daylight to less than 75 sDA on the eleventh and second floor,even though it had higher annual enery performance(19%-24%)than the best performance scenario.Application of the design principles to a case study indicated that 58%of the spaces had over 75 sDA for both Baseline and Best per-formance scenarios,while an increase in enery performance of 1%-3%was found in the Best performance scenario compared to the Baseline.展开更多
文摘Urban road traffic noise pollution has always been identified as a severe problem that affects urban populants.In developing nation,road traffic noise pollution depends on the composition of heterogeneous traffic composition.These traffic compositions contain vehicles,which have different sizes,speeds variations,a different dimension of vehicles.Environmental noise measurements have been carried out during day-time and night-time in different locations of tier-II city of India.The noise levels have been continuously measured over 24 h periods using kimo DB 300 class-2 noise level meter.The data contained in this research paper represent 768 measurement hours.All the information has been used to investigate the time patterns of the noise levels under a wide range of different conditions and to study the relationships between noise levels and traffic in urban areas.Maximum LAeq was observed 73.3 dB(A)at B_(14) location and the minimum was recorded 65.7 dB(A)at C_(3) location,which was greater than the central pollution control board(CPCB)prescribed limits during night time.A major reason for the generation of road traffic noise is due to the equal composition of 2-wheeler and 4-wheeler on the arterial road and heavy vehicles were recorded during morning peak and evening peak even though they are prohibited during peak hours.
文摘The present paper is talking about the recent situation of the archeological buildings which exist through modern urban environments. Urban expansion has a large effect on the archeological buildings continuity since such type of development impresses several serious challenges which conservation plans as well as preservation polices must deal with. A number of that main challenges are mega-constructions （tunnels, damps, roads, etc.）, pollution, socio-cultural impacts and traffic. Within Um Qias, the archeological buildings face similar challenges consistent with the urban environment where it is presented and that challenges are reviewed in the local community behavior.
文摘Contents of urban road landscapes were introduced from 3 perspectives of natural landscape elements,constructed landscape elements and historic landscape elements,and functions of urban road landscapes analyzed.Sidewalk of the West Renmin Road in Changsha City of Hunan Province was taken for example to elaborate design principles of urban sidewalk landscapes.It was proposed that urban cultures and local spirits have various connotations,such as historic traditions,environment background and neighboring objects,which are maintained in the memories of local residents in the form of historic relics,traditions,spirits,concepts and folk customs.These cultures and spirits are passed down from generation to generation and can be found in all corners of streets and lanes,but cannot be simply replaced by sculptures or garden settings.The fever of large-scale artificial sculpture in present construction of urban public spaces in China was criticized.
文摘This study examines the daylight and energy performance of 27 external shading scenarios in a high-rise residential building in the urban tropics.The cooling energy,daytime lighting energy and the spatial daylight autonomy(sDA)of the building model were simulated in Rhino3D and Grasshopper simulation software.The best per-formance scenario(vertical and horizontal shading on the twentieth floor,horizontal shading only for the eleventh floor and no shading for the second floor)satisfied 75 sDA(300lx|50)with corresponding annual enery performance of 16%-20%in the cardinal directions.The baseline scenario,which is the current practice of providing balconies on all floors,reduced daylight to less than 75 sDA on the eleventh and second floor,even though it had higher annual enery performance(19%-24%)than the best performance scenario.Application of the design principles to a case study indicated that 58%of the spaces had over 75 sDA for both Baseline and Best per-formance scenarios,while an increase in enery performance of 1%-3%was found in the Best performance scenario compared to the Baseline.
