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Table 2 Properties of crossing facilities and routes that determine barrier effects

From: Disentangling barrier effects of transport infrastructure: synthesising research for the practice of impact assessment

Properties

Description

Crossing facilities

Number of crossing points

Slow mobility modes require a higher number of crossing points than fast mobility modes [40, 67]

Height differences

Stairs and ramps leading to bridges and tunnels [6, 67]

Integration in the local street network

Connection to routes or central mobility strips [131]

Visual conditions

Lines of sight and overview at crossing points on roads [22, 87]

Conditions for fear of crime

Lighting, visibility, escape opportunities, social surveillance [6, 142]. For a further description, see section “Transport features

Quality

Protection from weather, maintenance [6], design and cleanliness [88]

Formal regulation

Pedestrian crossings, traffic lights and possibility to manually control these [87]

Crossing routes

Number of crossing routes

Utilitarian and recreational routes for slow mobility that cross the transport feature [40]

Connectivity of the street network

Mesh width [40]

Density of the street network

Network length per hectare or km2 [67]

Attractivity

Planning, design, signage, cultural-historic value, level of traffic safety [6, 40]