What are the key considerations that trail designers should take into account when attempting to balance the needs of competitive and recreational users, particularly in terms of trail surface, gradient, and technical features, and are there any successful examples of trails that have achieved this balance and if so, what are the common factors that contribute to their success?
How can trail designers ensure that trails remain challenging and engaging for competitive users while also being accessible and enjoyable for recreational users, and what role do factors such as trail width, surface material, and signage play in achieving this balance?
Are there any specific design principles or philosophies that can be applied to create trails that cater to a wide range of users, and how can trail designers engage with both competitive and recreational users to understand their needs and preferences and incorporate these into the design process?