Traffic Impact of Pedestrianisation in Stellenbosch Wilko Mohr Stellenbosch University Supervisor: Prof SJ Andersen Jesus is with you!

Overview Problem Statement Objectives Methods and Results Conclusions Recommendations

Problem Statement Pedestrianisation? Increase in private vehicle usage Increases transport related problems such as congestion and accidents Largely evident in historic city centers How can this problem be tackled in Stellenbosch? Is pedestrianisation a feasible option? Pedestrianisation? Closing off a street to create a pedestrian zone

Objective: Pedestrianise Micro simulation model Lit. Review Best practice Operational Status Quo Parking usage Movement pattern Traffic levels Traffic flow Parking surveys Number plate surveys Traffic counts Micro simulation model Solutions approach Current situation Relevant factors Data gathering and analysis Options development Proposed solution P Define traffic impacts Evaluate results Comment on feasibility 4

Parking studies 19:00-20:00 12:30-13:30 15:30-16:30 08:00-09:00 Volume/Capacity Ratio : 0.00 - 0.25 : 0.25 - 0.50 : 0.50 - 0.75 : 0.75 - 1.00 19:00-20:00 Volume/Capacity Ratio : 0.00 - 0.25 : 0.25 - 0.50 : 0.50 - 0.75 : 0.75 - 1.00 12:30-13:30 Volume/Capacity Ratio : 0.00 - 0.25 : 0.25 - 0.50 : 0.50 - 0.75 : 0.75 - 1.00 15:30-16:30 08:00-09:00 Volume/Capacity Ratio : 0.00 - 0.25 : 0.25 - 0.50 : 0.50 - 0.75 : 0.75 - 1.00 Parking studies Two different approaches: Parking utilisation Manual parking occupancy counts Volume/Capacity comparison over various time intervals Private vehicle parking & Loading zones High demand times? Occupancy percentage?

Parking studies (cont’d.) Licence plate analysis Data from Municipality Volume into and volume out of CBD With licence plates recorded Circulation of traffic becomes evident Contributor to traffic problems Table: Frequency of vehicles entering the CBD (24/04/2017) Frequency of entry No of vehicles 1 153 2 71 3 41 4 24 5+ 105 61% of CBD traffic is circulatory 27% circulates 5+ times

Operational implementation : Pedestrian precinct 1 2 3 4 5 6 Traffic impact of operational aspect? Monitoring vehicular access to area Entrance and exit control Least impact scheme to be used

PTV Vissim traffic microsimulation Analysing impact on traffic flow behaviour Model true to reality Lane widths, no. of lanes, vehicle types etc. Manual traffic volume counts (AM and PM) Base vs. pedestrianised scenario Considering LOS, queue lengths & delay time At six main intersections

Vissim simulation (cont’d.) Video

Vissim simulation (cont’d.) B A

Conclusions Parking studies High occupancy ratio Circulatory traffic a problem Sufficient parking at Stelkor Operational Implementation Best concept development Specific entrance and exit control Vissim simulation Traffic impact manageable Implementation possible

Recommendations Implement pedestrianisation scheme Create pedestrian focused environment Utilise the Stelkor parking Increased public transport facilities Beyond Stellenbosch

Thank You!