Road Investment and Congestion Tolling with Information Provision

本文嘗試分析三種工具（擁擠收費、資訊提供以及道路容量的投資）對於改善道路使用效率的整合效果。資訊提供的效果乃以比較完全與不完全資訊的狀況來處理，文中的路網則包括一線段與兩線段兩種。在分析各種不同的狀況時，先建立福利極大化的模型，並採用比較靜態分析來探討各種參數改變時的影響。相較於未考慮道路投資手段的文獻（如Verhoef et al.,1996），本文結果顯示道路投資的角色極為重要，當需求增加時，由於道路投資的增加，使得擁擠稅的數額不致增加太多。

關鍵字

道路容量；道路投資；擁擠收費；資訊

並列摘要

This paper intends to analyze the integrated effects of three instruments (congestion tolling, information provision, and investment on road capacity) on improving the efficiency of road usage. The information provision effect is dealt with by comparing perfect and imperfect information cases. The road network includes one-link cases and two-link cases. Various regimes are modeled to maximize welfare at first and comparative-static analysis is then used to analyze the impact of the changes in the parameters. The result shows that the role of road investment is active. When the demand increases, the road investment will increase and therefore the optimal toll may not increase too much compared to the road congestion pricing literature without road investment such as Verhoef et al. (1996).

並列關鍵字

road capacity ； road investment ； congestion tolling ； information

參考文獻

蔡智發 Tsai, Jyh-Fa、鄭淑穎 Jeng, Shu-Ying(1999)。以多組起迄旅次探討高速公路擁擠稅 A study of highway congestion tax by multiple O-D trips approach。經濟研究（臺北大學） Taipei Economic Inquiry。36(1)

Branston, D.(1976).Link capacity functions: a review.Transportation Research.10