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Box 39 Remuneration scheme of North South Expressway (PLUS) project ....................................... 217 Box 40 Project design issues: the case of Light Rail Transit (LRT) ......................................................... 218 Box 41 Illustrative examples of PPPs affected by construction cost overrun .................................... 218 Box 42 Operation issues: The case of Light Rail Transit (LRT)................................................................. 220 Box 43 Examples of extensions of the concession period ........................................................................... 222 Box 44 Currency risks: the Osmangazi Bridge case ....................................................................................... 235 Box 45 Traffic forecasts and revenue guarantees: the case of Yavuz Sultan Selim Bridge........... 244 Box 46 Traffic forecasts and revenue guarantees: the case of Zafer Airport ...................................... 245 Box 47 Traffic forecasts and revenue guarantees: the case of Ankara Esenboğa Airport ............ 245 Box 48 Early termination: the case of Sabuncubeli Tunnel ........................................................................ 248