Perbandingan PKJI 2023 dan MKJI 1997

Summary

This video provides an overview and comparison of the Indonesian Road Capacity Manual (PKJI) 2023 and the previous version, MKJI 1997. The speaker highlights differences in parameters for urban roads, unsignalized intersections, and signalized intersections, focusing on changes in road type categorization, capacity values, and terminology updates. While the general calculations and coefficients remain similar between the two versions, PKJI 2023 introduces some new terminologies and adjustments. The video aims to help viewers understand these changes and how they may impact road performance analysis.

Takeaways

• 🔄 PKJI 2023 and MKJI 1997 are both road performance guidelines, but there are some key differences between them, which the speaker explains.
• 🚗 Both guidelines have similar values for EMP (passenger car units), but MKJI 1997 still considers certain road types like 4/2 UD, which PKJI 2023 does not.
• 🚦 For free-flow speeds, PKJI 2023 and MKJI 1997 show similar values, but MKJI distinguishes more road types, while PKJI standardizes speeds.
• 📊 The correction factors for basic free-flow speed in MKJI 1997 still account for certain road types, whereas PKJI 2023 streamlines this process.
• 🛣️ PKJI 2023 unifies various road types under general categories, while MKJI 1997 has more specific distinctions like 4/2 UD, impacting road capacity calculations.
• 🏙️ Urban road capacities show slight differences between the guidelines, with PKJI 2023 increasing capacity for certain road types compared to MKJI 1997.
• 🚥 When analyzing signalized intersections, PKJI 2023 introduces additional types like '342 intersections' that MKJI 1997 does not cover.
• ⚖️ The basic capacity for non-signalized intersections remains similar between the two guidelines, with only slight adjustments in names and symbols.
• 🔢 Both PKJI 2023 and MKJI 1997 have similar formulas for delay calculations, turning ratios, and passenger car unit conversions, with only minor updates in PKJI.
• 📝 The main differences between PKJI 2023 and MKJI 1997 come from naming conventions and simplification of road types in PKJI, but core values and calculations are largely the same.

Q & A

What is the main focus of the video?

The video explains the comparison between PKJI 2023 and MKJI 1997, focusing on the differences in road performance analysis, signalized and unsignalized intersections, and other traffic-related calculations.

What are the main differences between PKJI 2023 and MKJI 1997?

The main differences between PKJI 2023 and MKJI 1997 include road type classifications, basic capacity values, and naming conventions. For example, PKJI no longer considers road types like 4/2 UD, which MKJI does, and there are different naming conventions for traffic factors.

How do PKJI 2023 and MKJI 1997 handle the conversion to Passenger Car Units (PCU or EMP)?

Both PKJI 2023 and MKJI 1997 use the same conversion values for Passenger Car Units (PCU or EMP), so there are no differences in this aspect.

What is the key difference in handling road types in PKJI 2023 compared to MKJI 1997?

In PKJI 2023, road types like 4/2 UD are no longer considered, while MKJI 1997 includes such types in its calculations. PKJI simplifies the road classification and assumes uniform speeds for similar types of roads.

How do PKJI 2023 and MKJI 1997 treat speed corrections for urban roads?

Speed corrections in PKJI 2023 and MKJI 1997 are generally the same for divided and undivided roads, though PKJI does not consider specific road types like 4/2 UD, which MKJI does.

What are the differences in basic capacity values between PKJI 2023 and MKJI 1997?

For divided roads, PKJI 2023 assumes a basic capacity of 1700 vehicles per lane, while MKJI 1997 assumes 1650 vehicles per lane. For two-way roads, PKJI 2023 uses a basic capacity of 2800 vehicles, whereas MKJI 1997 uses 2900 vehicles.

What differences exist in handling unsignalized intersections between PKJI 2023 and MKJI 1997?

There are no significant differences in the analysis of unsignalized intersections between PKJI 2023 and MKJI 1997, except for some changes in naming conventions and the classification of intersections.

What is a notable change in PKJI 2023 regarding EMP values for signalized intersections?

In PKJI 2023, the EMP value for protected motorcycle movements is reduced to 0.15, compared to 0.2 in MKJI 1997. Other EMP values remain the same.

How does PKJI 2023 handle factors such as the width correction for approach lanes in intersections?

PKJI 2023 includes additional intersection types like 342 for signalized intersections, but there is no specific correction formula for this type in the approach width correction, which may be an oversight.

What naming convention changes exist between PKJI 2023 and MKJI 1997?

Naming conventions have changed in PKJI 2023. For example, motorcycles are labeled 'SM' instead of 'MC,' and light vehicles are labeled 'MP' instead of 'LV.'