Heights

The London View Management Framework (LVMF) protects key views of London from parks or other well-used public spaces that help define London. Further details set out in the LVMF Supplementary Planning Guidance March 2012, The London Plan 2011 Implementation Framework. The implementation of the Mayor’s LVMF SPG within the context of the City of London is set out in Local Plan Protected Views Policy CS13. To aid assessment of the views data, the Heights data needs to be used with layers: • Protected Vistas • Assessment Points • Landmarks • Protected Vista Points • Sightlines Line file recording the height limits at 25m intervals for all relevant points in the Protected Vistas within the City of London. For use with the Protected Vistas at SY_DBE_PLANNING_POLICY.LVMF_Protected_Vistas. ArcMap documents set out the context of each view within the City of London. Contact Monitoring & Information team for further details. • View Type – Records the subset of views as identified in the LVMF – London Panorama, Linear View, River Prospect or Townscape View. • Designated View – The name of the designated viewpoint as identified in the LVMF. • Assessment Point – The reference code for the viewpoint as identified in the LVMF. • Landmark – The relevant Landmark feature for those views with a Protected Vista. • Distance – records the distance from the landmark. Positive values are for the Landmark Viewing Corridors/Wider Setting Areas and negative values are for Background Wider Setting Areas. • Height – Records the height threshold in metres Above Ordnance Datum (AOD) at each location. This is a fixed dataset.

伦敦景观管理框架（LVMF）旨在保护伦敦的关键景观，这些景观由公园或其他被广泛使用的公共空间所界定，有助于塑造伦敦的城市风貌。关于LVMF的详细说明，可参考2012年3月的补充规划指南《伦敦规划2011实施框架》。在伦敦市范围内，市长LVMF补充规划指南的实施细则体现在《地方规划保护景观政策CS13》中。为了辅助评估景观数据，需要使用以下图层与高度数据相结合：• 受保护视野图层• 评估点图层• 地标图层• 受保护视野点图层• 视线图层——该图层以25米间隔记录了伦敦市内所有相关受保护视野点的高度限制。与SY_DBE_PLANNING_POLICY.LVMF_Protected_Vistas中的受保护视野图层配套使用。ArcMap文档详细阐述了伦敦市内每个景观的背景信息。如需进一步详情，请联系监测与信息团队。• 视野类型——记录了LVMF中识别的视野子集，包括伦敦全景、线性景观、河流景观或城市景观。• 指定视野——记录在LVMF中识别的指定视点的名称。• 评估点——记录在LVMF中识别的视点的参考代码。• 地标——对于具有受保护视野的景观，记录相关地标特征。• 距离——记录从地标起测量的距离。正值表示地标观赏走廊/更广泛的背景区域，负值表示背景更广泛的背景区域。• 高度——记录每个位置相对于海平面的高度阈值（米）。此数据集为固定数据集。